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JCMack's avatar
JCMack
Explorer
May 05, 2016

help my 8.1 engine will not pass emissions test in canada

had to get an emission test on my 05 mountain aire with the work horse chasis and the 8.1 engine. the tech. said the engine is running way to rich to which i have to agree as the exhaust smells like i...
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ArchHoagland's avatar
ArchHoagland
Explorer
May 05, 2016
You need to clean your MAF. The Mass Air Flow sensor determines the air to fuel mixture and, when dirty, will cause Check Engine Lights,etc.

It is located right after the air filter, which should be changed at the same time.

Use MAF spray cleaner, about $10.

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