SCIV Posted April 2, 2006 Report Share Posted April 2, 2006 Okay, I know all about the crank relearn after tuning or PCM swap. That isn't the issue. I had the truck retuned 3 weeks ago (like the 6th or 7th tune adjustment) and everything has been great. This morning, I get a crank relearn code & engine light. WTF??? I didn't touch anything, this is completely random. Link to comment Share on other sites More sharing options...
fox_forma Posted April 2, 2006 Report Share Posted April 2, 2006 sometimes it will still throw a crank relearn code later on after the tune is installed. Did you ever get a relearn done from before? And is it def a crank relearn code? Link to comment Share on other sites More sharing options...
PewterC3 Posted April 2, 2006 Report Share Posted April 2, 2006 or could be a sensor going bad? Link to comment Share on other sites More sharing options...
SCIV Posted April 2, 2006 Author Report Share Posted April 2, 2006 sometimes it will still throw a crank relearn code later on after the tune is installed. Did you ever get a relearn done from before? And is it def a crank relearn code? <{POST_SNAPBACK}> Yep, it's a P0315. When I swapped the PCM last year, I had to do a relearn. Did a live tune with Nelson 3 weeks ago, but it has been perfect until this morning. It is still running fine, but this is just weird. Link to comment Share on other sites More sharing options...
cadowns Posted April 2, 2006 Report Share Posted April 2, 2006 My Relearn came 2000 miles after the tune. Go figure. CD Link to comment Share on other sites More sharing options...
SCIV Posted April 2, 2006 Author Report Share Posted April 2, 2006 My Relearn came 2000 miles after the tune. Go figure. CD <{POST_SNAPBACK}> Was it something like a bad sensor? Or just a freak occurance? Link to comment Share on other sites More sharing options...
cadowns Posted April 4, 2006 Report Share Posted April 4, 2006 Just a fluke as far as I know. Never a problem after the re-learn. CD Link to comment Share on other sites More sharing options...
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