Pinging
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More Turbo
Joined: Jul 2010
Posts: 669
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From: Tennessee
Pinging
I am getting pinging under moderate load but not when I let off and not at full throttle. I think it is the knock sensors. I watched the spark timing on my scanguage and the spark timing when it pings is in the mid 20's. When I hit the throttle it drops to about 10 degrees. It does not seem to be sensing the knock or at least not consistently. I wonder if there is a way to monitor the knock sensors with the scanguage? I don't think this is good for the engine. The knock can be stopped by changing the timing so I don't think there is anything wrong with the engine. If it were a vacuum leak or some other problem I don't think it would go away.
Perry
Perry
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
You CAN monitor the knock sensor, but I forget what the PIDs are called.
The knock sensor algorithm can only take 4 degrees of timing out. Sounds like something else is going on, such as a vacuum leak.
The knock sensor algorithm can only take 4 degrees of timing out. Sounds like something else is going on, such as a vacuum leak.
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