Question about 1991 Pontiac Bonneville

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I'm getting code 21 from the computer and I just replaced my throttle position sensor and the pigtail connector what else should I do?

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  • Pontiac Master
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ERASE CODE TO SEE IF CODE 21 COME UP AGAIN.YOU MORE LIKELY HAS TO READJUST OR REPROGRAM USING TECH 1 SCANNER.

Posted on Apr 29, 2010

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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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WHAT DOES DIAGNOSTIC CODE 21 MEAN


Code 21 is for the throttle position sensor, it has a 3 wire connector going to it at the throttle opening. Make sure it did not come lose. Older cars sometimes have. Brittle connectors that lose the retainer tab that holds it securely on.

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What does check engine light P2138 code mean and how to fix it?


P2138 Throttle/Pedal Pos Sensor Voltage Correlation

Potential Causes of P2138 DTC It's been my experience that the wiring connector or "pig tail" on the throttle body gives problems in the form of a poor connection.The female terminals on the pigtail corrode or pull out of the connector. Possible bare wire on pigtail shorting to ground. The top cover on the throttle body distorted preventing the gears from turning properly. The electronic throttle body is faulty. The accelerator pedal sensor or its wiring failed. The engine management computer has failed. The TPS sensors were not correlating for a few seconds and the computer needs to be cycled through its relearn phase to restore active response to the throttle body, or the computer needs reprogramming at the dealer.

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Throttle position sensor installation


should just be two star bit screws with a pigtail plugged into it. unplug the electrical connector(pigtail) remove the 2 screws and replace the new one the same way the old came out...... Make sure to disconnect the negative battery cable whenever your working on anything electrical or replacing a sensor.

Dec 09, 2012 | 2000 Mitsubishi Eclipse

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Trying to purchase used mercury mountaineer but shows a code of P2135what does that mean and is it expensive to fix? please advise


You may want to check with the dealer or do some internet research on the code - - the generic code means there is a problem with the throttle position switch circuit. It could be different for a Mercury product.

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'93 chevy S-10 Blazer 4wd (automatic) high idle & I have already replaced the idle air control/throttle positioning sensor & have checked for vaccuum leaks. (none of the above have fixed the...


dont know if this will help but have you replaced the coolant sensor (by the thermostat ) and the pigtail that connects it to the wiring also the map sensor may be part of the problem my 92 s10 did some what of the same thing and I replaced the temp sensor and that didnt fix it untill I put a new pigtail that connects to the wireing my son had a blazer that also did that I think ( its been a while ago ) and we replaced the map sensor and that fixed it

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2 Answers

Code p2138


P2138 is Throttle Pedal Position Sensor/ Switch D / E Voltage Correlation. Replace the Throttle Pedal Position Sensor/Switch.Remember to have the set code Cleared from the cars computer, this will turn off the check engine light and reset it. Good Luck and have a good XMASS.

Dec 17, 2010 | 2006 Nissan Altima

2 Answers

How to change a throttle position sensor on a 94 ford f150 5.0 4x4


How to Replace a Throttle Position Sensor
(DIY & Save up to $135.75 ) - Time: 2.1 hours

Parts:
1. Throttle Position Sensor - $ 55.44

Tools:
1. Scan Tool
2. Screwdriver
3. Multimeter

Procedure:
1. Locate the OBD data link connector (DLC). Refer to your owner’s manual for the specific location.
  • Tip: The OBD-I data link connector is usually located in the engine compartment near the battery or the fuse box. The OBD-II connector (post 1995 cars) is usually located beneath the instument panel next to the steering column.
2. Turn your key to the“ON” position. Do not start the engine.

3. Plug your scan tool into the OBD data link connector. Turn on the scan tool and select the appropriate steps to read the diagnostic trouble code (DTC).

    6db8845.jpg

Scanner plugged into OBD-II data link connector.
  • Tip: The OBD-II diagnostic trouble code (DTC) is a 5 character alphanumeric code. The first digit is a letter that indicates the component group, the second digit is OBD mandated or manufacturer specfic, the third digit is a subgroup, and the fourth and fifth digits define the component and basic problem.
  • 4. Locate the throttle position sensor.
6182d26.jpg

  • Throttle position sensor

  • 5. Disconnect the electrical connector from the throttle position sensor.
fc565b1.jpg

  • Electrical connector removed
6. Test the resistance of the throttle position sensor (TPS) with a digital multi-meter. If the resistance is out of specifications, the TPS must be replaced.
  • 7. Remove the throttle position sensor.

  • d3a8007.jpg

    Removing sensor mounting screws

    8. Install the new throttle position sensor. Tighten the mounting screws and attach the electrical connector.
  • 9. Erase the diagnostic trouble code (DTC) with the scan tool using the“delete” or“erase” command. Road test your vehicle to see if the check engine light returns.
fde01cf.jpg

    Check engine light

  • Tip: If the check engine light returns, repeat the diagnostic process for additional DTCs or take your vehicle to a certified repair shop.
Direct OE replacement

Hope helped with this. Good luck (remember rated this help).

Nov 05, 2009 | Ford F-150 Cars & Trucks

1 Answer

Camshaft Position Sensor code is recurring.


if you noticed hows theres not much slack in the pigtail connector to the cam sensor the wires can break at the bend. replacing the pigtail should fix it

May 25, 2009 | 2004 Dodge Neon

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