Is spark advance on obd2 scanner the same as ignition advance when figuring out if your timing chain is too loose?
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https://carkiller.com/scottykilmer/qa/welcome/#post-1271
No, it is not.
http://www.mx.innova.com/en-US/TechnicalInfo/OBDKnowledge
The timing advance value is what the vehicle's computer has calculated the timing should be.
If mechanical wear causes the ignition timing to be something else, the computer won't know until it gets bad enough to cause problems like misfire, knock etc.
Yes.
Doc is correct. See below for basics:
https://help.summitracing.com/app/answers/detail/a_id/5121/~/what-is-ignition-timing%3F
Is spark advance on obd2 scanner the same as ignition advance when figuring out if your timing chain is too loose?
Is spark advance on obd2 scanner the same as ignition advance when figuring out if your timing chain is too loose?