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Old 07-27-2003, 12:24 AM   #1
Scooby Newbie
Member#: 26016
Join Date: Oct 2002
Location: CA
2002 Impreza

Default AEM CAI check engine?


I just installed my AEM CAI and after driving it for a while my check engine light came on? Has anyone had this problem before or know what to do?

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Old 07-27-2003, 01:09 AM   #2
Scooby Newbie
Member#: 36078
Join Date: Apr 2003
Chapter/Region: South East
Location: Rock Hill, SC
2003 WRX Sedan


I've had an AEM CAI for three months now and no CEL.
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Old 07-27-2003, 07:42 AM   #3
Scooby Specialist
Member#: 10036
Join Date: Sep 2001
Chapter/Region: NESIC
Location: 42.698N 71.135W
2008 Infiniti G35x
Volvo XC90-T6


Check the MAF sensor; is it screw on tight? Mine came loose after a few days of driving and caused a CEL. It wasn't THAT loose but it was enough to throw the CEL. I had no problems after that.

Don't forget to disconnect the battery afterwards to reset the ECU.

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