Check engine light on after upgrades
Thread Starter
Joined: Mar 2008
Posts: 3
Check engine light on after upgrades
The check engine light is on now after I had a K&N air filter sytem and catback exhaust installed. On star diagnostics says the engine is running too lean and is sputtering. Is there anything that I need to have done now to correct his or should I replace everything I had taken off? Thanks
Super Moderator
Joined: Jul 2007
Posts: 13,056
From: Boat Town USA MI
RE: Check engine light on after upgrades
Keep driving, it may take 100 - 200 miles for your PCM to learn to learn to compensate by increasing fuel mixture etc...
Make sure the MAF Sensor is properly connected and snapped tight at the plug.
Make sure the MAF Sensor is properly connected and snapped tight at the plug.
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