Originally Posted by Rogue
If you go with option 2 and have us send you a core then that core must be taught the crankshaft variation (I.E. you MUST have a crankshaft relearn done).
Failure to do so can result in three options.
1)You somehow happen to have gotten a PCM that has the same variance in your crank sensors already programmed in it. (Rare)
2)You get a PCM that has a negative variance (less timing less performance)
3)You get a PCM that has a positive variance (more timing, possible engine damage)