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check engine ? engine run too lean ??

1K views 1 reply 2 participants last post by  '92BigBronco 
#1 ·
:AAHHH:

i know i post the thread before .. no one seem to be replied..

does anyone has the problem with engine running to lean ??

i had the code scan.. came up something with p10?? they say
engine run too lean..

i had the spark plugs changed about 20k miles ago
there are bosch 4+
i also upgrade cold air intake..

so.. the check engine came on before cold air intake..

so friend of mine say possible bad maf something like that..
so i just want to know your advice before i spend money that not gonna fix the problem..

hope one of ford expend can reply about this..

later ..

john
 
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#2 ·
A bad mass airflow sensor could definitely cause a lean condition. That would be my first guess as well.

Brian
 
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