Where to start?
Post Fiend
Joined: Jun 2003
Posts: 5,983
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Freshman User
Joined: Jun 2006
Posts: 48
Likes: 0
From: Jacksonville, AL
that last plug
I was having one of the codes ( I don't remember which) and I took it to my mechanic who found the last plug (all the way back on the driver side) had never been changed (140K+). He changed the plug which I understand is a real **&&^#^$ and everything is fine.
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Elder User
Joined: Jan 2008
Posts: 605
Likes: 1
The "PCV valve" doesn't create "suction" as you put it. It vents pressure to a vacuum source(suction) which is your intake manifold. A fault here would cause you to run lean on both banks which is what I guess your 2 DTCs say your O2s are telling you without looking them up. Handle your MAF with kid gloves. They are very delicate. You need to look for something that's common between Bank 1 and Bank 2.