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  #1  
Old 01-23-2008, 05:29 PM
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pcm problem

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i fried my factory pcm by trying out a 6 position bully dog without disconnecting the batteries. i had a generic 60hp chip that ran great before that. i went to an aftermarket computer site out of florida an tried now 2 of their pcm's and niether will accept a chip. i properly cleaned the tabs and installed them correctly. any ideas? are these aftermarket pcms just too weak to run chips.
the issue i experience when i try these chips is no wait to start light, telling me there is no communication with my injectors. the truck lights up the gauges and cranks, just no fire. any help is appreciated. thank you
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Old 01-23-2008, 05:30 PM
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I have never herd of an aftermarket PCM. Where woud you get such a thing?

Do you mean a PCM from another truck?

BTW, you can change the chip without disconnecting the battery. I have done it dozens of times.
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Old 01-23-2008, 05:36 PM
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Quote:
Originally Posted by strokin_early_99 View Post
I have never herd of an aftermarket PCM. Where woud you get such a thing?
some parts houses have PCM's....not for every vehicle but they can get them for some....and not all can get them for the same vehicles either...
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Old 01-23-2008, 05:50 PM
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auto computer exchange .com

they put together the boards. not used parts. i have spoke quite extensively
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Old 01-23-2008, 05:59 PM
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well the bully dog fried my factory pcm by not disconnecting the batteries first. the aftermarket pcms will not fire with either chip plugged in.
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Old 01-23-2008, 06:12 PM
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What PCM code did the rebuilt PCM come with?
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Old 01-23-2008, 06:17 PM
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i gave them the numbers from mine and they built it accordingly. there are approximately 26 different pcm boxes for late 99 7.3L

do you have more extensive info?
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Old 01-23-2008, 06:20 PM
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All I know is that the three letters of the PCM code have to match. So if you have a PMT1 PCM you need a chip with PMT flashed on it to work.

The PCM can be re-flashed by DP tuner or your chip can be re-burned with the correct tunes should they not match.

If the truck runs fine without a chip, then the chip and the PCM are not of the same PCM code.
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Old 01-23-2008, 06:21 PM
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the code is xc3f-12a650-ebd
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Old 01-23-2008, 06:24 PM
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which code has to match exactly? the previous or the nvk3?
i also have the #'s g nph 9f17f
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