LT1-LT4 Modifications 1993-97 Gen II Small Block V8

When it tells you to exit all programs...

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Old Jul 9, 2010 | 02:50 AM
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Default When it tells you to exit all programs...

exit all programs. I decided to dial in the VE tables for some better drivability and after some logging I was flashing a new tune with my datalogger still open as well as a couple internet explorer windows. After the tune was loaded and JET was returning my computer to normal operating mode I heard my fans kick on and that was the end of the road for that pcm. Whenever the key was on the fans would run and I could not communicate with the pcm with either my datalogger or the flash program. I tried everything including the restore pcm and nothing seemed to work. Luckily I keep a spare so I installed that pcm loaded the tune and all is well except for my fried pcm/doorstop, looks like I am in the market for a new spare.
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Old Jul 9, 2010 | 10:13 AM
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I learned that the hard way about 6 years ago. Since then, NOTHING can be running...no anti-virus, utilities, nothing.

Madz28 should be able to fix your fried PCM though. He fixed mine.
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Old Jul 9, 2010 | 01:36 PM
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thanks, I was going to give him a call it is cheaper to have it repaired than buy a used one and than have it burn another license in the tuner becasue of the different vin
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Old Jul 9, 2010 | 02:09 PM
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you press Ctrl+Alt+Del and restart the pc.
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Old Jul 9, 2010 | 03:00 PM
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I have been so very lucky not to have fried a PCM. I know its going to happen one day.
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Old Jul 9, 2010 | 04:16 PM
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how you fried PCM, its that easy to burn up ?
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Old Jul 9, 2010 | 04:18 PM
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Originally Posted by killagt
how you fried PCM, its that easy to burn up ?
If the programming is interrupted for any reason, the PCM is toast.
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Old Jul 10, 2010 | 02:42 PM
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Unhook that pcm from the car for awhile then hook it back up and try again. My laptop battery died mid upload and my car was stuck with the fan on also.
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Old Jul 10, 2010 | 07:35 PM
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Also make sure your screensavers or system hibernate is disabled/not set to come on for at least 10min. As well as system popups, especially if you are using a laptop and it has wireless and happens to detect and try to connect to a network as you're reprogramming the PCM.

I came close to frying my PCM once but I pulled the PCM fuse for 30 seconds and the car fired right up. Luckily it gave me the security error before erasing the old tune... talk about pants crapping moments. I even had everything closed, etc..., so it can happen at any time it seems.

I also take the fan fuse out before I load a new tune also. One less thing to worry about messing something up.
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