Hello.
I am trying to tune a 94 GMC k1500 5.7 4L60E.
The problem I am having is that timing is retarded to a negative number when the throttle is hammered.
Burst Knock is disabled.
Minimum Retard is set to 10 deg.
Data Log says its retarding.
I can't seem to figure out why.
Knock Retard not showing up
Nor Burst knock.
Changed low octane
seems a little better, but data log still shows that it is retarding, when it retards there is no power. I don't understand what to change.
I wouldn't mind if it preformed as a Non Computer HEI distributer. Am I wrong in thinking it can be programed that way?
It has a small RV cam in it, True dual exhaust, 3.42 gears. Throttle body spacer otherwise stock
Running open loop, trying to get ve dialed in with wide band. altered shift patterns, deleted egr.
Thats all I can think of.
Thanks in advance
16196395. Service number TBI pcm
BJLF BCC code
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