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E041 code when cold.


nmhenry
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 This is frustrating. 88 Reatta throws a E041 code when cold and mild hesitation on acceleration. When the engine gets to operating temp, no more code, no more hesitation, and runs smooth. Gets 30-32 on the highway.
 I changed the cam sensor and apparently the new sensor was bad so I reinstalled the old sensor. Magnet is still in place. I have installed new AC plugs, cleaned the MAF, New IAC.
 Cannot figure this one out.

 

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Many times it is the other way around, good cold and worse with everything active? I suspect the cam sensor code is a coincidence, but as I am learning, new or unexpected failures, continue to crop up. One way to see if the 041 is an actual cause is to disconnect the cam sensor and try it like that.

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