regorih

Hello,

I have a 2006 C6 auto car that I was tuning that turned bad. At some point in the tuning process, the E38 ECM got bricked. I kept getting an error message saying Unable to detect the vehicles diagnostic protocol on my hp tuners screen.

Long story short I was unable to connect to ECM from the OBD 2 port. In the end, I explored many options and my last option was to get another ECM. I was able to find another E38 ECM with matching service number and OS number. The replacement ECM also came from a 2006 auto C6.

I received the ECM and did a vin number swap via HPTuner and plugged the replacement ECM into the car and then I was able to read and flash the ECM.

I went ahead and flashed the replacement ECM with the last tune file I had and then went to turn the car on.

At this point the car won't turn on and I can hear the fuel pump prime.

Am I missing a step?? I really need your help to figure this out.

Thanks,
Roger

RecMech

Does it crank at all?

Start by turning VATS off temporarily.

regorih

It won't crank al all. I'll turn the VAST off and see what it does.

Bill Curlee

Brother,,,, I SUCK at tuning but, I have someone that you should talk to. I will PM you some contact info and he should be able to tell you what path to take.

PM SENT.

Bill

regorih

Thanks for the direction. I turned the VAST off and the car cranks, and turns on now but runs rough. I got a code: P0315 Crankshaft Position system variation not learned.

I'll have to chase this new issue now. I guess I'll try and perform a crank relearn from the HP Tuner scanner under special functions.

Roger

schpenxel

Yeah, try that

Camaronico

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