Pinging in OD??
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The initial shift into od is the prime conditions for ping.
If you do not know if the plenum gasket has ever been replaced, start there. There are tons of posts on that particular problem, a search of the forums will pull up tons of info.
What spark plugs are you running? Part number will help diagnose.
I would not think the wires would be a likely cause. Bad wires will usually be a constant problem, not a rpm specific issue.
Bad gas definitely a possibility. Try a different station or slightly higher grade and see if it goes away
are you running any aftermarket tuners/programmers?
If you do not know if the plenum gasket has ever been replaced, start there. There are tons of posts on that particular problem, a search of the forums will pull up tons of info.
What spark plugs are you running? Part number will help diagnose.
I would not think the wires would be a likely cause. Bad wires will usually be a constant problem, not a rpm specific issue.
Bad gas definitely a possibility. Try a different station or slightly higher grade and see if it goes away
are you running any aftermarket tuners/programmers?
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