roy
September 8th, 2007, 05:09 AM
Okay I went to reflash my PCM (1998 LS1) with a new tune and get a message that the boot loader failed or something like that. Then it goes with the standard 15 seconds for shut down. Pcm is now non functioning even if you pull the (-) cable off and put back on on. Car still wouldn't start.
Rehooked up the EFI Tune and itried to reflash and came up with the message that the calibration was corrupt or missing. I hit okay to continue and then get the Boot loader error again.
When I tried it the third time it did the same sequence of errors.
I had another PCM and installed it and the car firred up . (THank goodness) .
I then proceeded to program this PCM also but use the test mode. I keep getting the Boot loader error. But at least the PCM recovered.
Next I tried to read the PCM but I get the Boot loader error and the car will not start until I unhook the negative and then rehook it back up.
The version of EFI I am using is V7.4.2 (Build 622). I am currently downloading again.
Until now I have had no problem. But this is the firstime I used this particular version though.
So what am I doing wrong now that I wasn't before?
Rehooked up the EFI Tune and itried to reflash and came up with the message that the calibration was corrupt or missing. I hit okay to continue and then get the Boot loader error again.
When I tried it the third time it did the same sequence of errors.
I had another PCM and installed it and the car firred up . (THank goodness) .
I then proceeded to program this PCM also but use the test mode. I keep getting the Boot loader error. But at least the PCM recovered.
Next I tried to read the PCM but I get the Boot loader error and the car will not start until I unhook the negative and then rehook it back up.
The version of EFI I am using is V7.4.2 (Build 622). I am currently downloading again.
Until now I have had no problem. But this is the firstime I used this particular version though.
So what am I doing wrong now that I wasn't before?