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P0122 change 5 times; still showing code. Check wiring; good. Please Advise. 1997 Chevrolet 1500 Truck.

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  • Rohan Likedot
    Rohan Likedot Apr 17, 2017

    Hi Anita Beavers, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?

  • Anita Beavers Apr 17, 2017

    I found a black wire in the throttle located near the harness and a big fat wire near the harness inside the loom and it branched out to a boast on the engine block as if it's a ground.

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 239 Answers

SOURCE: 1997 Chevrolet Silverado 1500 5.7 vortechTruck

Hello Joey325,
Look under the hood on the fire wall behind the engine there is a black cover with 3 tall black what look like nuts. remove them and you will see a relay center, now there should be a brown wire marked timing may be not marked but pretty sure its brown just unplug it and go from there. I sure hopes that gets you going and thanks for using
Fixya Bear001

Posted on Jul 20, 2008

jmeyer847
  • 185 Answers

SOURCE: 1996 GMC Sierra 1500 P0174, P0171,P0154, AND P0122

Tim,

Yes these codes are associated with the MAF Sensor. One can trip the others as well. I would try removing the MAF Sensor and cleaning it first (brake cleaner or contact cleaner), then if that doesnt work I'd chalk up the bucks for a new sensor. Check this link for additional info on this http://www.obd-codes.com/p0174

Sincerely,

JC

Posted on Nov 15, 2008

philriden
  • 146 Answers

SOURCE: Change Fuel Filter on 1999 Chevrolet Silverado 1500

It's on the driver side frame. It's not hard to install one. Just have to have a special tool to get the line off the filter.

Posted on Jan 08, 2009

Tnsiouxfalls
  • 617 Answers

SOURCE: 96 olds ciera trouble codes p0122 p0300 missingthrough entire ran

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.
A code P0300 may mean that one or more of the following has happened:
  • Faulty spark plugs or wires
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector(s)
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Stuck/blocked EGR valve / passages
  • Faulty camshaft position sensor
  • Defective computer
Possible Solutions If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.
Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak
in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.

Posted on Feb 16, 2010

  • 130 Answers

SOURCE: Truck (2001 Dodge Ram 1500) runs fine. Check

I found that the code is set for:

P1740....TCC Solenoid or Overdrive Solenoid performance

which indicates that a rather inexpensive fix is in order, not a complete transmission replacement!! The TCC is the solenoid which controls the locking of the transmission converter so that you get better gas mileage with no "slippage" while at highway speeds, which is normal when the converter is unlocked as you slow down. If it is locked and the solenoid fails to release it the car will stall when you come to a stop since the fluid in the converter fails to act as a clutch and the engine is connected directly to the transmission input shaft. If it never locks then the oil in the transmission will overheat at highway speeds since ther "slippage" will always be present in the converter cauasing frictional heating of the oil.

Whenever you get a quote from a shop ALWAYS get at least two more!!! No matter what the job is, even a muffler replacement get many quotes. Go to a reliable transmission repair shop and ask for their opinion. In my humble opinion the shop that told you that you need a new transmission is just hungry for work - stay away!!!!

Bob

Posted on Apr 21, 2010

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