misfires on cyl 4 at WOT
01-15-2006, 10:14 AM
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misfires on cyl 4 at WOT Hello,
after finishing my LT install (with cats) etc, I noticed that once the throttle
is over 80% there is sporadic hesitation. After some checking with mu scan tool software I noticed that cyl 4 develops a lot of misfires during
WOT (>80%). At idle or below that and partial throttle I get almost none.
The kooks headers use brand new stock seals. Plugs seem okay - coils
are original (stock) of our 2000SS.
Any suggestions? Maybe I should check compression on that cylinder?
Thanks,
Gert
after finishing my LT install (with cats) etc, I noticed that once the throttle
is over 80% there is sporadic hesitation. After some checking with mu scan tool software I noticed that cyl 4 develops a lot of misfires during
WOT (>80%). At idle or below that and partial throttle I get almost none.
The kooks headers use brand new stock seals. Plugs seem okay - coils
are original (stock) of our 2000SS.
Any suggestions? Maybe I should check compression on that cylinder?
Thanks,
Gert
