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Did Colby actually do a relearn or just read what it said? The PCM stores that value and it won't change unless a relearn is done.
Not always true. I just set red97's for him. It was at -.88 with his old pump, it went to -2.46 and set a resistor error when he installed his new pump WITHOUT telling it to do a relearn. So they CAN relearn on there own(seen it with my own eyes).Did Colby actually do a relearn or just read what it said? The PCM stores that value and it won't change unless a relearn is done.
Desired and actual timing is generally checked while doing a timeset, and time set is only required on OBD1, obd2 can go straight to a tdc offset relearn(but doing a timeset can come in handy when trying to dial in your tdc offset to see how close you are to hitting the magic 3.5 degrees).
His is an obd1 so maybe that's the difference