lean code for banks 1 & 2?
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lean code for banks 1 & 2?
my check engine light came on, i checked the code and cleared to see if it would come right back on. two days later it did. im wondering what could be causing this? a friend sugested it could be something going bad in that plastic intake or oxygen sensors. its been running fine it seems like, i still drive it everyday and havent had any issues. any help is appriciated.
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My wife's old 97 Explorer had this problem, only when it was colder. It ran rough when it was cold out, until it warmed up. Turned out to be the upper intake manifold gaskets. When they were cold (and brittle) they didn't seal up right. Once they warmed up, they expanded a little bit and sealed up, ran fine.
I took a risk buy only buying the upper gaskets and replacing them fixed it. Sometimes it is the lower gaskets though as well.
I took a risk buy only buying the upper gaskets and replacing them fixed it. Sometimes it is the lower gaskets though as well.
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