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PO302 Cylinder 2 Misfire

StorableComa

Autocross Champion
Location
SoCal, USA
Car(s)
17 GSW S FWD
You can do chemical cleaning by spraying into the MAP sensor port. It isn't as effective as walnut blasting or manual cleaning. Just need to do it far more often.
True, but wouldn't that leave the cylinders furthest from the MAP sensor opening the least cleaned? Or is this with the engine running?
 

jimlloyd40

Autocross Champion
Location
Phoenix
Car(s)
2018 SE DSG
True, but wouldn't that leave the cylinders furthest from the MAP sensor opening the least cleaned? Or is this with the engine running?

I don't know the answer to that. Good question. I had the dealer do chemical cleaning once and they did take before and after pictures but I don't know that answer.
 
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