[FRSBRZGT86FAN]

Originally Posted by steve99

get the dealer to log the long term fuel trims LTFT if they are over 10% or so then something is wrong with the fueling likely stuffed or dirty sensors ( 02 or maf) or injectors or intake exhaust leaks.

Originally Posted by larchamb

check engine light back, and kick on deceleration at approx. 18 km/h
lol.....sigh

Originally Posted by Spartarus

Read my previous post first....

NO NO NO NO NO NO NO NO NO. F*cking mechanics.

REPLACE THE COIL? Singular? There's 4 of them. 1 for each cylinder. Sounds like some missing information here. Also to answer your question YES. I would like to know which plugs are fouling. All of them or just 1? From your vague description, it's now hard to tell. And from reading my last post you should be able to tell the answer is important.

Replacing fouled plugs and coils and hoping the problem will go away is a bullshit band-aid fix that won't work for long, if it even works at all. That's just mechanics being lazy and not wanting to put in the work to diagnose the actual problem.

It's like putting a towel over a compound fracture and hoping it will go away if you don't look at it. The mechanics know that too, they're just being lazy... I know because I know many mechanics, and often have to beat them into getting off of their lazy asses and doing some real diagnosis.

If the coils were bad, the engine would throw a code to indicate the coils are bad.


The fact is, like many other people have already said, modern EFI engines DON'T FOUL PLUGS. If it's fouling plugs, there's a problem that needs to be fixed, not just replace the f*ckers and hope they don't foul again.

Has anyone thought of unusual valvetrain issues?