Hey I installed the apexi neo on my car, and it pulls significantly better than before the neo was tuned.

Only thing is, the cel is on. I tried resetting the ecu by disconnecting the negative and taking the fuses out, and the cel does go away....but once I shut the car off and restart, it comes back 2 minutes later.

Oh yea, and when the cel is off, I lose that great pull, but when the cel is on, I get it back. Any suggestions on what I should do? Or why this is happening? Oh and when I drive my car in the morning, a cold start, my car likes to buck a little back and forth...but once warmed up is fine. Thanks!

 

once the cel is back on go to autozone or advance auto have them hook up their code reader and tell you what the code is. they will do it for free.