[dallas alice]

I checked my code on my odometer first and came up with P1693 Pdone so I just bought a OBDII scanner and pulled these two codes: P0336 & P0602. I looked up the codes and the P0336 indicates crankshaft sensor and the P0602 indicates ECM internal fault condition. My local dealership told me I needed a new ECM. Does this mean my ECM is toast something else?

 

[Osar]

P0602 ECM Fueling Calibration Error
P0336 Crank Pos Sens Perf
Cold be the crank position sensor or a corrupted fueling calibration program in the ECM. So it is possible your ECM is toast. Does your tachometer needle fluctuate or stop working intermittently?

 

[dozer12216]

I will go with a VP44 failure. the failure rate of ECM to VP44 is probablly one ECM to 10,000 VP44's. And that failure was probably caused by shorting the alternator control circuit. VP44's in electrical fail mode are really wierd.

 

[dallas alice]

P0602 ECM Fueling Calibration Error
P0336 Crank Pos Sens Perf
Cold be the crank position sensor or a corrupted fueling calibration program in the ECM. So it is possible your ECM is toast. Does your tachometer needle fluctuate or stop working intermittently?

Yes, it does.

 

[Osar]

Replace the crank position sensor and see if that helps. You should be able to find one at an auto parts store for about $70. Heck of a lot cheaper than an ECM.