Hello,

I'm hoping someone can help me out with a few error codes that I am having. Here are the error codes and what they are:

P0172: Fuel Trim System Rich

• DTC Severity 2 of 3

P0700: Transmission Control Module

• Requested MIL Illumination

U0100: Lost Communication With Engine Control Module

In addition to these items, the engine has a rough shutdown. It tries to keep running after the Equinox has been turned off. I'm pretty certain that that has to do with one of the listed codes. That said, I do not personally believe that all of the issues are "real". I believe that there may be a single culprit and it is giving "false positives" on the other two. I have no proof that that is the case, but just hopeful.

I would greatly appreciate it if someone could give me an assist in narrowing down this issue and whether or not it is something that I will be able to fix without expensive specialized tools.

Thanks!

 

Took vehicle to dealership. Cracked high-pressure fuel pump.

 

Tips to fix this error-
A repair of a vacuum leak.
A replacement of a faulty fuel injector, fuel pump, or fuel regulator.
Replacement of an excessively restricted air filter.
Replacement of the thermostat or coolant temperature sensor.
A replacement of the spark plugs.

This may help you,
Rachel Gomez

 

Moderators,

Please delete my account. The fact that it took 5 months for someone to respond to my post is a joke. I no longer have a need for this account.

Thank you.