Question about 1996 Chevrolet Blazer

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Tps Sensor low input p-0227

I have a 96 chevy blazer and i keep getting the error code "p-0227 throttle position sensor low input" i have cleared all error codes i have a elm 227 scan tool for my computer. i have replaced the tps on the throttle body 4 times 1,2,3 where used ones and they kept the mil light off for about a month and 1 new one kept it off for approx 2 months ??? wtf

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  • typeeren Jan 14, 2009

    so possibly there is another control module on the throttle pedal.??

  • johny app Mar 21, 2009

    ''throttle PEDAL position switch control Circuit" how would i diagnose that?

  • Anonymous Mar 20, 2014

    do I replace pedal or throttle body tps sensor

  • Anonymous Mar 22, 2014

    I replaced the tps and now trany kicks an shakes when shifting

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P0227 also indicates the throttle PEDAL position switch control Circuit.Not only the throttle position sensor at the engine.

Posted on Jan 13, 2009

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Engine turns over, but will not run


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Engine code p0122 keeps coming on


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- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection When is the code detected?An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

Dec 21, 2012 | 1998 Plymouth Grand Voyager

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P0122 error code on a 1999 oldsmobile 88


P0122 Code - Throttle Position Sensor/Switch A Circuit Low Input
A P0122 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. On some vehicles that lower limit is 0.17 - 0.20 volts (V).

Did you adjust it when you installed it? If the signal value is less than .17V then the PCM sets this code. Could be an open or a short to ground in the signal circuit. Or you may have lost the 5Volt reference voltage.

Symptoms may include:
Rough or low idle
Stalling
Surging
No/little acceleration
other symptoms may also be present

Causes: A code P0122 may mean that one or more of the following has happened:
TPS not mounted securely
TPS circuit short to ground or another wire
Faulty TPS
Damaged computer (PCM)

Possible Solutions: Some recommended troubleshooting and repair steps are:
Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary
Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.
If recently replaced the TPS may need to be adjusted. On some vehicles the installation instructions call for the TPS to be properly aligned or adjusted, consult a repair manual for specifics.
If there are no symptoms at all, the problem may be intermittent and clearing the code may resolve the issue temporarily. If this is the case then you should definitely check the wiring to be sure it's not rubbing on anything, grounding, etc. The code may come back.


Test it and keep us updated.

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2 Answers

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OBD Code 22 - Throttle Position Sensor Error (Signal Low)
The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve. The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

Symptoms:
* Extended cranking, possible no-start condition
* Lack of power
* Erratic transmission operation

Common Problems:
* A failed Throttle Position Sensor (TPS) would be the most common causes for code 22
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Keep us updated.

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jturcotte_426.jpg

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Hi.

The problem is regarding TPS (throttle position sensor located in throttle body). Both codes are TPS voltage out of range (low and high) If you get both codes at once, then :

TPS may be defective,
wiring to TPS may be shorted to ground.
There may be a problem in the +5V circuit powering the TPS.
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1 Answer

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