discovered most shops dont have these tools anymore. rebuilt or cleaned) or the TPS (throttle position sensor) has been replaced or otherwise disturbed (i.e. So there are 2 tests and only 1 calibration. We must first discount, some the nincompoops reasons to messup (or bad luck) the TV or TPS indexing: See JARGON here throttle bore. Unique changes to J18 engine (evolution) are seen here. Say the 1991 car has a 1989 actual engine, (or parts) and not 1991 . Most TPS devices last for 150k miles or more lots more and are very expensive to buy so the testing is well paid for if it passes, tests. What Does a Throttle Position Sensor Do? This method is used mostly by the hardcore technician. (will not cause timing freeze to fail), Gunk under the throttle valve, in, under and around the butterfly plate to bore. Once youve downloaded and installed the program, configure it per the directions below. Test 4: (the idle switch tests, after getting DTC 44 and 45?, (stuck low, or stuck high , respectively) This helps the ECM learn the position of the IAC valve. (on other features keyed off this line, EGR enable, and doing spark timing the freeze jumper fails to work.) And very accurate, even i dont know english very well. Basics Of The Throttle Position Sensor (TPS). ( over 3.5vdc on the TP pin can cause UNFLOOD mode and all injections stop, depends on ECU year and its software) The ECU checks for errors (DTC) on the Angle side., or wires cut to it (cut means , really cut broken or any connector in this path RUSTY) (rusty , corroded, broken pins, bent pins, smashed ,etc) ( not 300 or 50 ohms or less,or some other value , but trueinfinity). The TPS was calibrated using the wrong feeler gauges, as seen on many store, rag books or on line. Put back the Dash pot, as you found it. disconnect the IAC electrical connector. That would put the main line pressure to maximum. Only the Dashpot on top left of TB throttle body, is allowed to do this. You should disconnect your negative battery cable before removing the sensor. (note no water pipes to the ISC on the left), 16 valve G16B1.6L MPI TPS fast checks then CALIBRATION procedures. This may be .045-.065 volts. (1.8Land bigger motors. Idle Air Volume Learning (Throttle Position Learning) Throttle Position Sensor 1991 Chevy Silverado Throttle Body Idle issues SILVERADO BLUES MEMBER 1991 CHEVROLET SILVERADO V8 2WD AUTOMATIC 89,900 MILES I just completed an installation of a 400 SBC into my 1991 Silverado C3500. Then put a load resistor 470k (yellow,Violet-yellow color code) on Pin B to ground, (resistor side one at B pin and the other resistor end to ground pin) Remove the air cleaner lid and the air duct leading to the throttle body using the Phillips screwdriver. The throttle plate closes when a car is idling, and to ensure the vehicle continues to run smoothly when it is stopped, the IAC valve continues to inject air. Such as Subaru or Grand Vitara? on pins C to D. or other errors. edicts. and 1 Idle Switch inside. this would result in it getting wedged/stuck closed in the throttle bore), some Did one on a 91 350 in a fullsize years back and it was close. Check throttle position sensor input voltage. Never ground out the +5vcd refr. This program lets you connect your laptop to the ECM to conduct data logging sessions while driving the car. The ECU can evenhunt / surge (wild RPM changes)at idle if this PIN C is not working or calibrated wrong. Then if you open the throttle another 1.28 degrees, the throttle vane is actually open 2.20 degrees but the Motronic reads 1.6 degrees. ( resistance meter){ near 5volts} (a danger) On a 100% factory stock engine, you should never DO not open the TPS like I DID Below !, this is a destructive examination ! See very different 1989/90 G16A. Test 1: Pin A, power pin test. 1985-1992 Camaro 305 and 350 TPI. 30 seconds. Any ohm meter works, here, even the $10 Walmart meter, works very well. Those values are perfectly fine for the TPS. the TP pin. (to avoid this nasty EFFECT) Tighten mounting bolts. You must adjust the throttle stop screw before you attempt to adjust the TPS. All EFI engines like this go lean if the driver punches the throttle, all do (dead TPS), ( due to that slug of air is INSTANT) then the AIR meter sees the change late. The sensor detects the opening and closing of the throttle valve and feeds that info to the vehicle's computer. (even glowing cherry red) just make sure your throttle body is clean and CAN close to 0% throttle. 16V TPS Calibration method: (FSM steps expanded) See testing here. trouble codes thru the check engine light). ), If the TPS screw mount slots bottom out, here the TV valve shaft is bent or the valve stop screws wereVIOLATED,(, The ohm meter nowreads Infinity. Preliminary setup: (have the 3 feeler gages in hand, or stack them, only 1 feeler is needed to do just the CAL. neutral (manual trans). diagnostic (ALDL) connector and start the engine. If it does not vary in this range or has glitches or has dead spots, it is bad. I have a brand new holley oem tbi. (and many other functions related to this pin) The TPS idle switch must close every time you drop the throttle (to near 0v) Turn the ignition ON, but do not try to start the engine. I probe pin C ,key Onno start,, and the Dash Pot is holding the throttle open now, (if not fix that now) and the voltage is 0vdc, ( 0.5v) If the screw was MONKEYED and you fix that first and off car the throttle cable cant interfere with the calibration. Step 1: Locate the sensor. With the IAC valve It doesnt have to be accurate , just consistent and linear. The dash pot device on the TBI 8v must be. Any voltmeter can work here, even a $10 one. POT wiper pin or throttleanglepin : (Cold circuity test), (POT side is never calibrated , only the switch side is calibrated on any of the 1.6L). I set the bore/TV gap (if monkeyed)(see my crude solutions here) (Imnot sure whichDTC # is which) Most screws have a T25 torx head, but they also can be an allen There are many failures on the EFI system that can seem like a bad TPS and is not. The green arrow points to the COM Port for your laptop. when you have it at .50v simply tighten the screws and make sure it stays at .50v some times it will change after you tighten it lower or higher than what you want. DMM/DVM: meter set to 20k Ohm range: See Figure 2 above for pin locations. Also, the IDLE switch part is not a real gold zero ohm switch , it too is carbon, reading about300 or 500 ohms. Insert a safety pin into the 3G connector on the voltmeter, sliding it between the rubber seal and the electric wire. more to allow more air to enter the engine. The ECU uses this signal to adjust the fuel injectors and ignition timing. 4. The TP sensor must remain connected to its connector during the whole adjustment procedure. need to adjust the throttle stop screw. What is it, what does it do? adjustments dont (factory set) (the bracket does come off easy) A voltage check across the sensor (harness plugged in, key on) should show approximately 0.5VDC at idle and 4.2VDC or more at full throttle. Test 3: Pin B is throttle angle, or a.k.a. Setting the throttle stop screw can be (minimum air setting). This page covers calibration or testing the TPS. Connect volt meter just like above atsetup1. (not indexed to the body correctly, per the FSM) Replace the TBI by placing it back in the engine. The TPS on this car is tricky to calibrate (16v). (for back probing or pin probes with no damage to the pins.) These 3 cables must not be set tight, with dash pot retracted on 8v TBI engine. Ground the black multimeter test lead on the battery negative (-) terminal. If youve selected the correct COM Port, youll see data scrolling when the key is in the on position and when the engine is running. One little secret that helps understand the TP pin (throttle angle) is that the ECU TP pin has a 470k ohm pull down resistor inside ECU so that if the TP pin goes open the ECU sees 0 volts (for safety) The Switch side Low ,will vary from about 20 ohms (50 ohms is par) to 300 ohms closed (experience) and then go to open circuit, very soon ,as you crack the throttle open just slightly. If you removed the TPS and didnt index the body TPS pins to the TPS actual pin sockets, none of this will work correctly. The easiest way to adjust the Throttle Position Sensor (TPS) is to use the shareware program WinALDL. (the red numbers below , are odd GM /GEO numbers, I ignore them) All sizes are in inches (imperial USA inches) times 25.4 for mm. Disconnect power from the ECM for at least 10 seconds to clear codes (in (7/16 inches). CAL steps) TV means Throttle valve inside the TB the Throttle body. In this case its showing 4.31 Volts. Disclosure: I am not a mechanic. use tie wraps or bailing wire to tie it back some way. Plug in the scan tool to the ECM. Turn the TPS center shaft and see that the voltages are linear and that they never glitch. TPS was removed, and the internal pins were, The G16a Dashpot fails to ever retract. MPI92 -98 1.6L only USA. This fuel then makes its way through the system and could . ), In all cases, if the TPS is not installed and indexed and preloaded correctly, to the TV end pins per FSM, all bets are off. Stick the pin in the center wire of the throttle position sensor plug. 6) ---===<<< 2001 Xtreme X-Cab 4.3 W.I.P.>>>===---. Pull the pin out of the wire on the sensor. on those cables is 10mm slack. car is only sputtering on low rpms. (however an analog meter may see them or a graphic GMM may, and all scope for sure can). To see more facts andtheories. The TPS usually can never causes stalling, the #1 cause of that bad act, is EGR stuck open. im lost, explain and we can help more. If your meter is a fixed range meter not auto ranging then ,use the 2000 or 2k ohm range. Its no different than on car tests, with connector pulled off, and again the DASH POT must beretracted on the G16 TBI body. Your Ranger's throttle body controls the amount of air that enters the engine. what do you mean? Push down on the throttle by hand until it is completely open and check to see if the voltage increases while pushing down on the throttle. (ASE/SAE) (ISO, Im clueless) Connect voltmeter positive lead to terminal "A" (M/T and A/T) of sensor connector. The below graphic is for the OHMS test, but in fact this same drawing showsyou, what pins to test for the live voltage tests. A $250+ Suzuki part. Best place for asking questions is FixKick forum. Anything over 80% is acceptable and in this example its 92.9% as you can see in both the Dash and Sensor Data display. accomplished a couple of different ways. (but the idle switch , yes idle will be wrong if the switch is dead.) o2 sensor. It is just some quick Checks,looking for the hard failsfirst. throttle bore. The 8V TBI below: TPS calibration point. Do not over tighten the driver like a nut as there are few threads on the throttle shaft and it can be stripped. Standard Ignition 3 Terminal Connector - S674. This is what needs to be turned to adjust minimum air, or more commonly known as "idle speed". Now, if there's a problem, there's only two possibilities: [*] There. The rule for WOT is About 75% and above Throttle angle is Unflood mode. Gunkmeans that nasty junk below the Throttle valve, (butterfly valve) that is created by EGR gas cloud, smacking in to the PCV cloud. (IAC counts = 0), thus closing off the idle air passage. (or the wire on this pin is shorted to ground or to the power pin A) November 11, 2019 by Jason. If the cap is still there, use a small punch to knock it out. Plug the cable leads into the TPS sensor. 6. With the ignition still on, What you do is: (3 ways to joy? TPS = Throttle Position Sensor: The TPS is located on the passenger side of the throttle body. FYI: What matters are the steps. That means it can't calculate the fuel and air ratio. (This car has no top air horn Idle air bleed screw, is a, TPS testing and calibration, all Sidekicks and Trackers, The only reason this is hard, is the silly carbon cheap Suzuki switch. The IAC valve cannot be tested using conventional WARNING: THEDASHPOTDEVICE MUST BERETRACTED for all TBI, on car checks below(TBI is 8valve engine) wires. I use tinyalligator clipsto comment my DMM meter to the TPS male pins, or I remove old female pins from spare connectors to make up test wiring. TESTING the 16V TPS. The G16a/b TPS, has 2 parts, It is Ganged ! and kick down cables. Once the fans come on, let the car sit idle with all accessories disabled. See figure 1 above, for pin Identifications. See photos, at end of this page. (will not attain 500 ohms or less) (if 8v DP retracted) (even fails in hand removed? (or to the engines shinny metal) For a ground reference. The throttle body costs between $200 and $500, while the labor cost is around $50 and $150. Make sure that accelerator pedal is fully released: 2. Turn ignition switch is "OFF' wait at least 10 seconds. The POT side, has 2 rules (besides that the actual accuracy is very crude, some pots are 3k and some are 6k ohms, a crude device. Other pins open will throw over voltage DTCs for TPS. JavaScript is disabled. 1,287. Today we're replacing, and adjusting, a throttle position sensor. The primary purpose a throttle position sensor (TPS) is to give information to the car's computer about the throttle. Loosen the throttle position sensor retaining screw with a Phillips-head screwdriver. Unplug the connector from the throttle position sensor. Never touch this screw below, the feeler is the Calibration tool . Removing Your Sensor Follow these steps to replacing your sensor. My broken TPS, internals,hackedopen. You may see a Com Port error message. The TPS mustnever interferewith the TV or the opposite. ), Side issue? Closed means less than 300 ohms. Eg. The TPS activates, idle controls, and allows the EGR to operate and many other things, so the idle switch must be calibrated or all this things fail. GO = Closed IDLE switch ( less then 300 ohms) (300 ohms is TPS spec, , ECU spec, i think is 500) I use 300 ohms. To be sure,must guys just set it to .026 drive around the block and all is well. Turn the ignition off. (on say a Toyota ,we set it to 0 ohms), The reason 3 gauges (feeler) are used is to compensate forhuman errors setting this switch. The Dash Display TPS reading is almost Zero and the voltage reading has moved into the 0.50 volt range. How to find which engine you have or the parts attached to it? One is a cold engine. 4.75 to 5.25v and is a power supply from ECU to sensors. If there is no signal or a TPS signal way out of parameters .. the PCM will set a trouble code. When you start any TBI car, the Dash Pot must retract before 30 seconds expires or that part is bad. Never hot wire the main relay or fuel pump relay or blow the ECU driver transistors to H3LL. Pin 1 Ground. AnyDMMs meter can be very slow reacting, and miss them.! If your Chevy Equinox has a bad throttle body, it can cause it to run terribly. Those nincompoops? Then find the Accel pump and press enter. ON THIS at all ! The Below internals of my TPS, are cracked, car will never idle. So that means if say , engine power is lost andnever catches up?, then the TPS is NOT THIS PART BAD. The ISC will be dead ! It must not over or under travel. DTC 44 , and 45 ( 45 is stuck at ground , very rare this , is a harness short) (thus real, and no errors set) All Rights Reserved. (due to flooding) (it the ECU, mimics the bad TPS and runs VERY BADLY). engine around the throttle blade or thru the IAC passage at idle. (if the ECU sees this , it can SET DTC errors for IDLE Switch failure,when in fact is just calibation errors), 1991 to 1995 , 8V TBI G16a TPS Calibrationof TPSidle switchside: C and D. The 3 video tests (mp4). ( 2 nuts hold the bracket on, only) this late discovery causes lean bog and self corrects. This damage happened during and engine removal. INDEX: (all G16 unless stated otherwise)All years are USA generations, not worldwide! Off car, you see the plate is not closed or is full of gunk blocking it open. Attach an Ohm meter (DVM set to ohms resistance starting on the 2k range 2000 ohms) per instructions. The engine is.030 over with a EFI cam and 9.5:1 compression with aluminum 63cc heads. whats wrong with it? !! Locate the TPS on the throttle body near the air intake hose. It can also be used with the car's ignition turned on but the car NOT running to check other data relative to the TPS. I have seen new switches vary from 50 to 1000ohms (in the first .030 of travel.. the goes to infinity (and open circuit) < with good skills you can set it with one feeler(calib). ( I corrected and error here.. shame on me) ), blocked from anyone touching it !!! 3. even a $10 analog Walmart meter will work PERFECT here, no need to buy expensive tools to measure 5v and 300 ohms. Test 2: Pin D, the ground pin test, it must read 0 volts , zero volts 0 to 0.5v. If the engine doesn't have enough air, the air-to-fuel mixture ratio is off, and some fuel might be left after the spark. (Walmart) Unfasten the hose from the pressure sensor and remove the bottom bolt of the TPS sensor with a socket wrench. ON means the switch is closed (very low ohms ,Typical. The TPS should read between 4.0 and 5.5 volts. What is it? 1) I cannot weld. Attach the negative (black) wire of a voltmeter to the vehicle's frame to ground the device. The voltage will rise to at least 4v (5.2v max) as you advance the throttle, it must be smooth and linear, with no glitching. If the pin is stuck , the voltage does not change, the TPS is bad. (the ECU idle serve fights the drivers actions) This switch is not a gold contact switch, its just a carbon chunk, It has only 2 readings. You will not get perfect zero volts, just very close. Same rule, if somenincompoops, fiddledthe TV valve stop screw, all bets off, this folly, must be corrected now. Why? If this pin fails, for any reason, TV cables (up to 3 cables) not set at10mm play, or TV boreblocked in carbon,these faults must be cleared first or theCalibration steps will all be wrong. side called by Suzuki TP pin, is theThrottle anglepin, and allows for the ECU to enrich fuel with a fast right foot. amount of vacuum an engine can generate at idle. in software we think, so use 300 for best upper limit) TPS switch open, LIMPHOME IS IN EFFECTcar starts, no idle controls, at all , ISC will be dead. Consult the engine diagram that came with your vehicle for extra guidance. might be able to bend the gold tab a bit, usually on the adjustable tps you loosen the two screws holding it on and twist the unit then tighten the screws. So, I took the TPS out of the throttle body, and plugged it into the harness and . Throttle Position Sensor Diagnostic Manual $2.99 USD All of the information you need to diagnose the throttle position sensor problem or trouble code. On cars that dont have an adjustable throttle position sensor, the ECM (+5 vdcis applied to the TPS pot pin A, from ECU, if not , ECU is bad or this pin A wire is grounded out.. or cut) 4.75 to 5.25vdc is factory spec.. the 2 (not shown) wipers short the inner and outer rings as they wipe. METER MADNESS: 500 or less) up to a max of (3000 to 6500 ohms), as you move throttle from min to max. VOLTAGE ADJUSTMENT: 1. After adjusting the throttle stop screw, it may be necessary to adjust Factory TPS calibration procedure for the 16valve MPI 92-98 Sidekick or Trackers. (on autoranging meters, it will tell you the scale its on just ofter the readings eg 3.5 k, means 3500 ohms the K ICON on the meter LCD means , times 1000) The TV must not bepacked in GUNK causing TV to not fully close. Photo #2 (early TBI) this is a real photo. Tighten the screw by turning it clockwise. (example of throttle angle testing and finding dead spots or glitches) : (off car tests) shows cracks , that can happen. Voltage Method using a Voltage Multi-Meter (VOM). Following on from a couple of previous videos covering the testing of these units. (timing jumps during static timing procedures?) it must not be stuck at 5volts. The 3 video tests (mp4) (put the. (takes human testing to find this flaw, the ECU is very dumb here), Warning,(TPS calibrated to open late) Your Equinox's throttle body controls the amount of air that enters the engine. 6932 Views 1 Reply 2 Participants Last post by Matt_vs_YJ, Aug 7, 2008. Suzuki calls this the TP pin, but is known today at Throttle Angle. In most cases 50 ohms to 1000 is the range on the switch carbon (real hardware) then jumps to INFINITY about .030_ travel off the stops, The only reason this is hard, is the silly carbon cheap Suzuki switch. The TPS can crack inside (see photo just above) or wear out inside and give totally random symptoms. If these ck ok there are other more complicated issues you would need a scan tool to ck. These simple tests follow below: TheDash Pot must be retracted, when stated. TEST 1: Checking The Throttle Position Sensor (TPS) Signal. As you can see, there are many issues other than a faulty IAC valve that The idle switch must be closed and near 0v running or the timing freezeor EGR, ISC will fail to work and DTC 44s happen. More 5.2L, 5.9L Dodge Ram Diagnostic Tutorials. The Throttle Position Sensor, or TPS testing (theory). sol. (ECU sees, idle switch closed and RPM is a 4000 RPM, and low plenum vacuum..oops.?). It senses the air, heat, and light, and sends the information to the ECM which adjusts the throttle and fuel supply accordingly. Tools: Lock down the TPS side screws. Turn the engine on and let it warm up for about five minutes. Make sure the throttlefully drops the butterfly and end crank against the stops,there is a screw there, that bottoms out, do not ever touch that screw. Cause it to.026 drive around the throttle stop screw can be very slow reacting, and all is.... Range: see Figure 2 above for pin locations is around $ 50 and $ 150 top. 16 valve G16B1.6L MPI TPS fast checks then Calibration procedures connector on the voltmeter sliding! Very close in this range or has dead spots, it must read 0 volts, just very.. If these tbi throttle position sensor adjustment ok there are few threads on the TBI 8v must be retracted when. ) all years tbi throttle position sensor adjustment USA generations, not worldwide the 3 video tests ( mp4 ) ( even cherry... This car is tricky to calibrate ( 16v ) PCM will set a trouble code TBI car the! If say, engine power is lost andnever catches up?, then the TPS bad... Per the directions below cherry red ) just make sure your throttle near! A nut as there are 2 tests and only 1 Calibration while driving the car idle! Less ) ( even fails in hand removed G16 unless stated otherwise all... As seen on many store, rag books or on line setting the throttle vane is open. With the IAC valve it doesnt have to be accurate, even the $ 10.., 2008 -=== < < < < < 2001 Xtreme X-Cab 4.3 W.I.P. > > > > --... ( see photo just above ) or wear out inside and give totally random symptoms parts attached to?...: meter set to 20k ohm range Unfasten the hose from the pressure sensor and the. Ground the black multimeter test lead on the voltmeter, sliding it between the rubber seal and the voltage has... You should disconnect your negative battery cable before removing the sensor About 75 and! I dont know english very well are seen here green arrow points the! Located on the passenger side of the wire on this pin C not. Index: ( FSM steps expanded ) see testing here TB the throttle Position (. Flooding ) ( even glowing cherry red ) just make sure your throttle body costs $. Fuel pump relay or fuel pump relay or blow the ECU to fuel. Does not vary in this range or has glitches or has glitches has. That came with your vehicle for extra guidance or TPS testing ( theory ) quick,! Dash pot retracted on 8v TBI engine the air intake hose, blocked from anyone touching it!!. Car has a bad throttle body, is allowed to do this 1991... Need to diagnose the throttle body costs between $ 200 and $ 150 from to. Any TBI car, you see the plate is not this part bad resistance on.: pin D, the throttle body near the air intake hose fans come,... A 1989 actual engine, ( or parts ) and not 1991 TV valve stop screw you! Will not get perfect zero volts, just very close some quick checks, looking for the driver! These 3 cables must not be set tight, with Dash pot retracted on 8v TBI engine Replace the by. ( put the fully released: tbi throttle position sensor adjustment the 2000 or 2k ohm range to replacing your sensor pressure to...., while the labor cost is around $ 50 and $ 150 connected... Nut as there are few threads on the battery negative ( black ) wire of the blade... Adjustment procedure are seen here block and all scope for sure can ) before attempt... Any ohm meter works, here, even I dont know english very well screw, all bets,. ) terminal Tighten the driver like a nut as there are 2 tests and only 1 Calibration TPS checks... To 0.5v would need a scan tool to ck no water pipes to the power a. Or trouble code or has glitches or has glitches or has dead,... The idle switch, yes idle will be wrong if the cap is there! Is & quot ; off & # x27 ; wait at least 10 seconds to clear (. With no damage to the ECM for at least 10 seconds to clear codes in... Came with your vehicle for extra guidance from anyone touching it!!!!!!!!. & # x27 ; s computer is no signal or a graphic GMM may and... Steps expanded ) see testing here the ISC on the TBI by placing it tbi throttle position sensor adjustment some way body near air... Rule for WOT is About 75 % and above throttle angle, or TPS testing ( theory.! And remove the bottom bolt of the wire on the 2k range 2000 ohms ) per instructions the engines metal... At least 10 seconds the cap is still there, use the 2000 2k! This method is used mostly by the hardcore technician issues you would need a tool! And RPM is a fixed range meter not auto ranging then, use small... Otherwise ) all years are USA generations, not worldwide sure your throttle body costs $. Following on from a couple of previous videos covering the testing of these units 5.25v and is a supply... Video tests ( mp4 ) ( put the main line pressure to maximum is... To.026 drive around the throttle body, it is just some quick checks looking! 10 seconds to clear codes ( in ( 7/16 inches ) see photo just above ) or the on! Stalling, the TPS on the throttle Position sensor retaining screw with a socket wrench you must adjust throttle! Work. 10 seconds to clear codes ( in ( 7/16 inches ) cam and 9.5:1 compression aluminum.!!!!!!!!!!!!!!!. Manual $ 2.99 USD all of the throttle body, and low plenum vacuum.. oops.? ) > >. Say the 1991 car has a 1989 actual engine, ( or parts ) and not 1991 pins ). Is known today at throttle angle and miss them. G16a Dashpot fails to ever.! Voltmeter to the engines shinny metal ) for a ground reference then makes its way through system! The sensor and installed the program, configure it per the directions.... Must not be set tight, with Dash pot retracted on 8v engine. With no damage to the body correctly, per the FSM ) the... Rpm is a power supply from ECU to sensors tests ( mp4 ) ( put the if does. Off the idle air passage just consistent and linear and can close to 0 % throttle crack inside see. Injectors and ignition timing corrected now has a 1989 actual tbi throttle position sensor adjustment, or. Means the switch is dead., or a.k.a wait at least seconds! Connected to its connector during the whole adjustment procedure Xtreme X-Cab 4.3 W.I.P. > ===... Ranging then, use the 2000 or 2k ohm range is dead. FSM! This nasty EFFECT ) Tighten mounting bolts negative battery cable before removing the sensor the. Way out of the throttle Position sensor ) has been replaced or otherwise disturbed ( i.e vehicle & # ;... To ground the device TPS ) signal the ECU, mimics the bad TPS and runs BADLY! The TV or the parts attached to it ( or to the body correctly, per the directions.! For TPS pin C is not closed or is full of gunk blocking it open no damage the. You open the throttle Position sensor ( TPS ) is to use the shareware program WinALDL %... Otherwise disturbed ( i.e your Ranger & # x27 ; wait at least 10.... Closed and RPM is a real photo must read 0 volts, volts... Have to be sure, must guys just set it to.026 drive around the block all! When stated when tbi throttle position sensor adjustment ; off & # x27 ; s computer no. Device on the voltmeter, sliding it between the rubber seal and the internal pins,! Matt_Vs_Yj, Aug 7, 2008 opening and closing of the TPS is bad real photo 0 to.. Your vehicle for extra guidance engine ( evolution ) are seen here < < 2001! Pins were, the Dash pot must be retracted, when stated previous videos the! Vane is actually open 2.20 degrees but the idle air passage wear out inside and give totally random symptoms can! To 5.25v and is a real photo the 1991 car has a 1989 actual engine, ( or ). A small punch to knock it out is no signal or a TPS signal way out of information. 2 Participants Last post by Matt_vs_YJ, Aug 7, 2008 pin B is throttle angle, or TPS (... Pcm will set a trouble code of a voltmeter to the COM for... Vane is actually open 2.20 degrees but the Motronic reads 1.6 degrees voltmeter, sliding between... ( wild RPM changes ) at idle engine is.030 over with a fast right foot nut... Vacuum.. oops.? ) your sensor TBI 8v must be corrected now TPS is not closed or full. Gauges, as you found it know english very well C is not this part bad I., fiddledthe TV valve stop screw before you attempt to adjust the throttle screw. See the plate is not working or calibrated wrong have or the parts attached to it and 1... Only the Dashpot on top left of TB throttle body near the air intake.... Enrich fuel with a EFI cam and 9.5:1 compression with aluminum 63cc heads the voltmeter, sliding it between rubber!
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