failed flash

[mr.prick]

You are having flash/read problems w/both vehicles, right?

[pdasterly]

i only have one car up and running right now

[pdasterly]

turned out i have some sort of electrical issue, hp tuners couldnt reflash the pcm either. Newtech bench flashed the pcm and im running now. Kinda dissapointed in the number but anyway it is what it is. 470.24 RWHP 443.80 RWTQ

[Tordne]

Post #2

[pdasterly]

Something is really not right for you. I suspect either:
- you have a dodgy PCM. There are no response from PCM and retires in the above which are irregular.
- questionable electrical connection from the ODBII port to the PCM. Are you able to try flashing that PCM on a bench harness?

If you were doing a calibration only flash the bootloaders would not have been updated so the flash should not have bricked the controller.

Pcm was bench flashed and was ok. Tuner say something on the wiring harness is causing my problem but they dont know where to start:(

[Tordne]

I'll put it out there to start with that I am no electrician so shoot me down anyone

There aren't terribly many pins actually "required" for the flash process, so I would do the following:
1) Check with a multi-meter that there is a circuit between the PCM and OBDII connector on the expected pins.
2) Again with the multimeter check that the voltage measured is as per specification/expected. Perhaps also check resistance on the circuits.

[pdasterly]

http://www.youtube.com/watch?v=Vh-9j_GCrao

http://www.youtube.com/watch?v=O-aLSZEtkDA

[joecar]

Thanks for the vids...

What was the AFR during the dyno pulls...?

[pdasterly]

in the video the number on the upper right hand corner, starts off 14 is the AFR ends up about 11.5 or so