Question about 1991 Isuzu Pickup

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1909 buick skylark tps low volts trouble code

Have a 1990 buick with 8oooo miles car wouldnt start replaced ecm ran a couple weeks  check engine lite came on, trouble code low/high volts on tps. replaced tps now have low volts code and very high idle have tried to rotate tps but volts dropped to.4 engine requires .5 + - .005. idle rpm slows with rotation of tps, have also disconected battery trouble code still appears

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  • scottanthony Jun 11, 2008

    when i rotated tps to get low idle even with 4.5 volts on my meter i got inside my 1990 buick and realized my check engine light was off. accessed trouble code and none came up locked her down and called her good. haven't had a problem yet. thanks for trying. skot 



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Replace ignition coil make sure by dealer the right mode is used when ordering if not ordered right you will get a difference in engine volts

Posted on Jun 07, 2008


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Car starts will not accelerate, code reader says Code DTC 22 Throttle Position Low

Well code 22 means the signal coming from the TPS is too low. That usually means an open circuit between the sensor and the engine computer. The computer sends a 5 volt signal to the sensor and reads what comes back to the computer. Its possible the sensor is way out of adjustment, but more likely a broken wire or connector between the sensor and computer. You would need a scanner to "see" the data stream from the sensor to know for sure.

Aug 06, 2014 | 1992 Chevrolet Camaro

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Was getting a code for TPS I replaced it now the enging will not start unless I use eather I get it running and hit the throttle and it stalls code 22 was present but not now

Check the wiring connector

Your getting a low voltage reading, as if the
sensor was closed

Back probe it with a volt meter & move the
throttle plate with the ignition key on & look
for response

You should have .42 volts closed
4.85 volts open- if the connnections
are good,the tps is good & your ground
side wiring is good

The either just replaces the fuel not asked for by
the tps & ecm then adjusts the injector pulses

Aug 31, 2013 | 1990 Buick Century

2 Answers

1993 Buick Skylark Custom 2.3 4 cy runs extremely rich and rpm surges at midrange?

not sure if the 93 has a mass airflow sensor, i know it has a air charge temp sensor that can cause the issue you are describing.

Oct 25, 2012 | 1993 Buick Skylark

1 Answer

Code 22 on 95 gmc sierra what does that mean also t will start up but wants to die we replaced idle air control valve and also the throttle position sensor did not fix it i check vaccum lines all good it...

Trouble Code 22 indicates that the Throttle Position Sensor (TPS) is reading abnormally low. TPS volts should be close to 0.42 V at closed throttle and rise smoothly in about 0.02 volt increments to a maximum reading of about 4.85 volts at WOT.
Typical causes for this code include:

1) Maladjusted TPS
2) Defective TPS
3) No +5 volt reference to TPS
4) TPS-return to ECM is shorted to ground or to sensor ground
5) Defective ECM

Good luck, i hope this helps.

Jul 01, 2011 | 1995 GMC Sierra C1500

3 Answers

My buick regal 2003 wont excelerate it starts

It may be the throttle position sensor. You should have a check engine light on in your dash. You will need to have someone plug a OBD II reader in and retrieve the code.
You can spend a LOT of money just putting in one part after another.
Please let me know what you find.

Feb 07, 2010 | 1991 Buick Regal

1 Answer

Car will not Idle

The TPS must be set with a voltage meter. What are the code numbers? Air flow meter will not let it idle too. Get a used one to save you money. Be sure you do not have the ecm number 1228253 in it also,they will make the car shut off while driving. I have one of the cars with 295,000 miles on it.

Jun 26, 2009 | 1990 Buick LeSabre

1 Answer

Check engine light on

replace tps switch and adjust it to factory specs.

Jan 20, 2009 | 1990 Buick Regal

1 Answer

Running rough or fast

If both the MAF and 02 have been replaced, try the TPS (Throttle Position Sensor) also check for vacuum leaks. the hoses that come out of the throttle body are very vulnerable to melt from heat.

Sep 15, 2008 | 1997 Buick Skylark

1 Answer

Trouble codes for 1993 Dodge Daytona with 3.0 liter

Trouble Code 12 is a special case code that is not logged into the ECM's Non-Volatile Memory (NVM) when detected. When the ignition is "ON" and the ECM detects no ignition reference pulses coming from the ignition module, it illuminates the Service Engine Soon lamp.
Trouble Code 22 indicates that the Throttle Position Sensor (TPS) is reading abnormally low. TPS volts should be close to 0.42 V at closed throttle and rise smoothly in about 0.02 volt increments to a maximum reading of about 4.85 volts at WOT
Trouble Code 35 is not used in the Turbo cars. If this code appears while a computer is connected to the ALDL connector, it is probably the result of a bad cable connection at the PC or the ALDL connector. Reseat the cable connections.

Aug 24, 2008 | 1993 Dodge Daytona

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