Killed my 2nd ECU. WTF

[Round Rock TJ]

:ranting:For my second ECM....

Downloaded the latest and greatest. Pulled a fresh tune off the P12 using v8. Opened it up in v7 and changed a few small things. Opened the tune back up in in v8 and simply saved it. Opened it in v8 and downloaded it. It went without issue. Turn the key and nothing. Nothing can communicate with the ECM.

This is BS. Im so pissed. So now what. Drop some more money on another ECM and license.:ranting::ranting::ranting::ranting::ranti ng::ranting:

[Round Rock TJ]

Give the ol error $0280

When I try to download in v8 it go through and says programming. But the timer never starts. This is all it does.

Executing: C:\Program Files (x86)\EFILive\V8\Config\P12_W.obj
Virtual Machine Started
Script Loaded
Script Verified
Executing: Boot Loader...
Checking Data File...
Erasing: Wait...
Programming...
Please: Wait...
Script exited with code $0101: No data received


I tried it with a battery charger hooked up and even removed some un-needed fuses to see if it makes it any better.

The 4th light on the V2 blinks.

[joecar]

What versions of V7/V8 and what V2 firmware...?

[Round Rock TJ]

OK it might be something with the voltage. While its trying to program the dash volt meter drops down to 9. Has anyone seen voltage problems give these kinds of issues?

[Round Rock TJ]

What versions of V7/V8 and what V2 firmware...?

The latest and greatest. I downloaded all of them today. Updated both firmwares as well.

2.07.04
2.07.29

Build 197

[joecar]

I pm'd Tech Support.

[Blacky]

The 4th light on the V2 blinks.

If its flashing about 4 times per second, that indicates the PCM is in dead-poll which just means the calibration is gone (i.e. erased) and has not yet been programmed back in.
The voltage at 9V is an issue. It needs 12V to program the flash chip.

Regards
Paul

[Round Rock TJ]

I got it.

Executing: C:\Program Files (x86)\EFILive\V8\Config\P12_W.obj
Virtual Machine Started
Script Loaded
Script Verified
Executing: Boot Loader...
Checking Data File...
Erasing: Wait...
Programming...
Script finished successfully.


All I did was download the tune in high speed mode. I had it unchecked because high speed never worked for me in the past on this P12. I thought I would give it a shot and it worked. It took 35 seconds. Im used to the 11 min thing.

Sorry about the red faces. All I was trying to do was return the car back to stock to sell it. I had to tell the guys to come by another time. I hope I did not scare him off.

Thanks Guys

[GMPX]

Glad you got it sorted in the end. Unfortunately the older pre CAN bus vehicles can be pretty sensitive to interrupted flashing. If you have ever used TIS (GM's dealer programming system) it always says pull 'x' number of fuses before flashing. Whilst you normally wouldn't need to do that with EFILive nothing is a 100% guarantee with the Class 2 bus vehicles.

[Chuck L.]

U find what was causing the low voltage???

[Round Rock TJ]

No. I pulled every fuse I thought was not needed. One of the fueses was for the dash so my dash voltmeter was out. I hooked a real meter to the battery and it was rock steady at 14 (charger was running) when I did the high speed download. The one that worked. I never tried it with the slow speed download. Too scared.

[ScarabEpic22]

I had a very similar experience yesterday with a P10, tried flashing a customers truck that always gives me headaches and I thought I bricked the PCM. Took me about 45min of pulling the battery cable, fuses, disabled all of his aftermarket stuff, and tried flashing with both V7.5 and V8. Once I got the PCM to start communicating again with my V2, I was able to flash a tune in using V8 (see you guys got the recovery process squared away in V8 now!).

This was just a cal flash as EFILive doesnt full flash the P10, would fail at 18kb data sent in V7.5 then error out.

[Blacky]

After spending the whole day tracing debug code through the firmware, I'm working on cleaning up some timer issues.
I managed to create the conditions that causes the E60 and P12 flash to fail. I expect other VPW controllers will fail for the same reasons.

The issue boils down to a timing issue, depending on when (within each 5 second window since startup) you press the "go" button to start flashing will determine whether or not the flash is successful. There's no way to "know" when the right time would be, so there's no useable workaround just yet. I'm working on a fix for that.

Regards
Paul

[Round Rock TJ]

There's no way to "know" when the right time would be, so there's no useable workaround just yet. I'm working on a fix for that.

Regards
Paul

Thats alright. Im only out $250.:bawl: