PInging??
#2
TECH Senior Member
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Are you still running the stock tune? I know on my 2002 Vette, the timing curve was very aggressive and at around 4,200 RPM the KR would kick in and you could hear it while driving. Tuner took care of it when I put the headers on. He also had an 02 Vette, and we plotted the two stock curves against each other and they both had the same issue.
#4
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Join Date: Mar 2004
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Pinging can be either pre-ignition or detonation. Typically it's pre-ignition. Typical causes include: too much timing, carbon buildup, incorrect plugs, worn ignition parts, lean fuel mixture...