Thread: Newbie From Missouri
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Old Fri, April 24th, 2009, 10:03 AM
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Jackpine Jackpine is offline
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Originally Posted by cleatus12r View Post
The check engine light likely came on due to P0171/174 codes. These are lean codes and the PCM is unable to correct the fuel trims or has to correct more than 15-20% from base. It takes A LOT more E85 per unit of air to compare to gasoline.
And probably, because of the CAI, the feedback loop between the O2 sensors and the MAF sensor was unable to compensate? (That would be my guess, anyway). That CAI may be driving you VERY lean. It would be interesting to see what would happen if you took the CAI off and ran it again with E85 on Level 2.

Anyway, welcome to the forum!

- Jack
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