Spark Advance Variation at Idle
#1
05-01-2011, 08:44 AM
Spark Advance Variation at Idle
I am surprised at the amount of spark advance variation I see at Idle on two blazers I am working on. One is a 96 and the other is a 98. The two attached graphs are from the 96. Same range on the 98.
Does anyone have an opinion on what is normal spark timing variation?
Does anyone have an opinion on what is normal spark timing variation?
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