Hello,
We have a Chevy Aveo (2007). We tried to go through emissions but it failed. We took it to Maxi Muffler and they fixed the catalytic converter and replaced the check engine light. We tried to go back through emissions again but the check engine light didn't come on when they turned the ignition switch so they stopped the process. We called back to Maxi Muffler and they indicated that the light came on when they checked it. They asked us to bring it back when we had a chance (they kept the car for 2.5 days originally and my bf works 3rd shift so won't be until this weekend). My boyfriend went to work last night and this morning when he turned the ignition, it illuminated! When he got home and turned the car off, he turned the ignition again and it didn't illuminate. Any idea what the heck is going on? It's running me insane. I apologize as I do not have the emissions codes that kicked out originally. Also, since they stopped the process the second time, we don't have any new codes. It's almost as if when the car is cold it comes on but when it warms it doesn't. Any idea what may be going on? I appreciate any help/suggestions. Have a great day.