Has anyone seen this? My check engine light is on when idle, on when coasting, but on any acceleration, or just freeway driving, the light goes off. I was having a MAF sensor code but I put in a new one and it didn't work, so I just had all the capacitors replaced in the computer. The car really seems to run much better and idles perfectly after the capacitors replacement, but the engine light is still on and it will not pass the smog test when that pesky light is on. Thank you.

 

What speed are you coasting at?? Is it a stall?? I've noticed this while coasting but its intermittent... it only happens when my idle is low, other times it idles perfectly and have no issues. If it isn't your MAF then it may be IAC valve... which I will be troubleshooting soon... I may be wrong..