engine code

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Old Nov 5, 2006 | 11:59 PM
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skelly454's Avatar
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From: Iowa
engine code

Hello, I have a 2000 f150 lightning. The check engine light came on so I got it checked out and it said p1131, something about air fuel mixture. Anybody know what this means. thanks

skelly454
 
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Old Nov 6, 2006 | 07:40 AM
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projectSHO89's Avatar
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Most likely time for a new upstream O2 sensor on the passenger side.

Check first for exhaust manifold leaks as that can cause a false DTC.

Steve
 
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Old Nov 7, 2006 | 12:36 AM
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hey thanks for the advice I'll go ahead and check those things out

skelly454
 
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