CRAZY datalog read
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Joined: Apr 2004
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From: Abilene, TX
Car: 1989 GTA
Engine: 5.7 TPI
Transmission: A4
Axle/Gears: 3.23
CRAZY datalog read
6E- cold idle in open loop I had a reading of 23039.XX for spark advance relative to reference pulse for several seconds. I've never seen this number over 25. Any ideas?
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Possibly the timing is not being properly calculated by the scan tool. When the advance is before the base timing the ECM timing value is negative, which is a large number.
RBob.
RBob.
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