Crank No-Start/Idle 91 ZR-1

[Ozruss90]

Your symptoms sound the same as mine, that I have overcome in the last couple of days. I thought my Cam Sensor was ok BUT upon advice from Marc, I disconnected the wiring harness from the Cam Sensor to the ECM. Engine fired up and ran straight away. Put another Cam Sensor in ( borrowed secondhand) and car is back to normal.
Hope this works for you 🤔

Cheers,
Russell 🇦🇺

[BaggyToaster]

Originally Posted by Ozruss90

Your symptoms sound the same as mine, that I have overcome in the last couple of days. I thought my Cam Sensor was ok BUT upon advice from Marc, I disconnected the wiring harness from the Cam Sensor to the ECM. Engine fired up and ran straight away. Put another Cam Sensor in ( borrowed secondhand) and car is back to normal.
Hope this works for you 🤔

Cheers,
Russell 🇦🇺

I read your thread right after I posted my latest update. I was skeptical that it would work mainly due to not having any injector pulse. I still ran out and tried it immediately. Unfortunately no workie. Thank you for looking out!!!

[RSLyrick]

Hi Baggy,

even if your tests results highly suggest that you have a faulty ECM, would you have a ZR-1 friend around to perform a swap test to finally confirm it ?

If not, I guess the cheapest option at the moment is to use your warrantly. The technician who performed repair should be able to confirm the failure by placing your ECM in its own test car and then investigate if the failure is related to the rework or something new.

I do not see ECM for sale on Ebay or corvette forum so far.