Questions & Answers for: envoy ecm

...envoy and now it wont stay running if i let off the gas please help Try resetting the ECM, turn the ignition key to the on position "engine not running" and pull the fuse to the ECM and place it back ...

...ENVOY speedometer working sporadically. gas gauge acting same way and now oil gauge is starting to act up also! could this be the cluster or a ecm problem? common gmc problem it needs a new ...

2004 envoywarning ECM failure is this computer under warrenty still it has 70 ooo miles The catalyst and ECM should be covered 8 years/80,000 miles,unless damaged by misuse or neglect

...ecm on 04 gmc envoy, now engine wont start. everything else works. what should i do? disconnected the battery, told old unit off (core trade-in). two days later (today) put rebuilt unit on, connected ...

...envoy will shut off and will not restart for up to hours the feul pum and ignition switch are good and the ecm and crank position sensor have been replaced and it is still doing the same thing Check ...

...ENVOY '08 Where are you coming up with this ? ISO 9141 and KWP 2000 this is a communication protacoll. when the scan tool is plug into the OBD port it uses a set amount of communication dialog to ...

...Envoy SLE fuel trim is set by the ECM during running operations and is not adjustable unless you have the computer and program to reset the parameters for the ECM maybe if you ran the fault codes ...

What do I do if I changed out the ecm unit. And I get a security. Light Is a 2004 gmc envoy replaced the ecm. It turns over and every thing works but no fire to moter was ecm flashed to your vehicle

..... their is no chip the answer from 2013 by ken hane is incorrect the only chip would be a piggy back for performance ---did you flash the new ecm to your ...

...Envoy, new ignition switch, still won't disengage? Question edited for funky spelling and punctuation. Question moved to model category. Jeff provides a great answer to the issue Jeff Armer Jan 02, ...