DataMaster 32 Scan for ping/knock
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Instructor
Joined: Nov 2002
Posts: 131
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From: Tacoma Wa
DataMaster 32 Scan for ping/knock
Here's a scan when my 87 Vette was pinging/knocking horribly.
As you can see the engine is in closed loop, lots of knock counts & no retard, this problem goes away when the engine reaches 175 degrees
so whats the problem? ESC? Ignition Module? CPU?
thanks for looking & comments
ps whats "CCP DC" below EGR DC
As you can see the engine is in closed loop, lots of knock counts & no retard, this problem goes away when the engine reaches 175 degrees
so whats the problem? ESC? Ignition Module? CPU?
thanks for looking & comments
ps whats "CCP DC" below EGR DC
