What is the spark advance supposed to be in idle for s-10 blazer?


kcarpenter29
04-08-2010, 08:13 PM
My husband is trying to figure out what the spark advance is supposed to be when it is in idle. Our blazer takes a long time to get up to speed and having some other issues and the spark advance in idle is running at 21. I guess this is also called timing advance. I am not sure.

old_master
04-08-2010, 09:06 PM
What year and what engine?

kcarpenter29
04-08-2010, 09:10 PM
It is a 98 with a 97 crate motor. 4.3l

old_master
04-08-2010, 09:48 PM
The distributor housing is keyed, meaning it can only be installed in one position and is not adjustable. Ignition timing is controlled by the ECM.

Add your comment to this topic!