06 LLY wont start [Archive]

redyrxela

July 15th, 2012, 10:34 AM

Installed DSP5 switch, then flashed the ECU. now truck wont starts, EFI live says "ECU not detected".

It was detecting it after the switch install, so I don't think that was the problem.

I check fuses but couldn't find any bad ones and I can get power from the OBD port.

if i try to display info VIN/OS for GPM I get VIN: Unknown opSys:12597107
if i display for TCM i get the correct VIN.

What should I try next?

cumminsDK

July 15th, 2012, 02:05 PM

Full flash stock tune back in

redyrxela

July 15th, 2012, 02:32 PM

Full flash stock tune back in

would love to, but as far as EFI live is concerned the ECM isnt there.

GMPX

July 15th, 2012, 03:28 PM

Pull battery for a few minutes then try to full flash it again.

redyrxela

July 15th, 2012, 07:39 PM

Pull battery for a few minutes then try to full flash it again.

disconnected the positive wire from both batteries for ~40 mins, still no ECM detected.

GMPX

July 16th, 2012, 01:00 AM

Can you post the tune up? Or if not (as in it may have been purchased from someone therefore shouldn't be put out in public), can you Email it to [email protected]
Maybe there is something wrong with the file that has bricked the ECM. As far as I know Bosch ECM's don't die very often.

cumminsDK

July 16th, 2012, 05:45 PM

I just had this happen on 06 flashing with V7 got stuck at 1988k. Stopped it and used V8 no issues