check-engine light/running rich with PI intake

RysRed96GT

I like it FURRY!!!
Founding Member
Apr 9, 2001
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Pasadena, MD
my cel came on during a trip after a long drive. its a rich code in both banks. my question is, when the cel comes on saying this, is this an extreme case of a bad a/f ratio? or is it just a small fluctuation?
 
Im starting to think our cars are very sensitive and the engine lights come on for very small reasons. All I have intake wise is a plenum and 75mm t/b with the stock airbox and my engine light is on saying Im running lean. I guess you could get a dyno to see how rich your running.