NickcZ28

iTrader: (9)

Ok I put my cranksesor in about 4 weeks ago reset the computer and it worked fine(little did I know). Well the first time I really got on it (like WOT from a stop) the car shuts of in 1st gears at about 5 thousand rpm and backfires like a MF so I turn the car off, stop and restart and it is fine, No codes set..Well later on I found out I had to do a "crankshaft RELEARN" on a Tech2, so I did and the problem still perssist...The car does fine when I go from like a second roll and WOT...PLEASE HELP
PS the car is a M6

wrencher

iTrader: (2)

Are you setting any codes? Why do you think the CKP is the problem? Have you check the data stream from the PCM? The fuel pressure?

Magnus

iTrader: (4)

HP Tuners can do the crank relearn procedure.

Definately sounds like the PCM is losing crank signal.

NickcZ28

iTrader: (9)

Data stream looks fine just looses crank signal...=(

whitt1

EFILive can do that you don't need a Tech 2.