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Swapping PCM's?? i need help!!

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Old Apr 14, 2004 | 12:32 AM
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Default Swapping PCM's?? i need help!!
If I was swapping my Pcm into a friends car and hooked up a scan tool to it. would it bring up my vin or would it still bring up his vin?
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Old Apr 14, 2004 | 10:25 AM
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it should bring up his vin.

Ryan
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Old Apr 14, 2004 | 10:44 AM
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It will bring up the vin that is stored in the computer.
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Old Apr 14, 2004 | 10:48 AM
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Originally Posted by 1 SiC LS1
If I was swapping my Pcm into a friends car and hooked up a scan tool to it. would it bring up my vin or would it still bring up his vin?
it will bring up your VIN. Also it won't start due to BCM-PCM need to be relinked. if you have the ability to disable VATS then you'll need to do that before you swap it.
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Old Apr 14, 2004 | 10:49 AM
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What Crash said. The VIN is stored in the PCM when flashed so if you swapped your PCM to your friend's car, it would read your VIN.
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Old Apr 14, 2004 | 10:54 AM
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Also it won't start due to BCM-PCM need to be relinked. if you have the ability to disable VATS then you'll need to do that before you swap it.


Never heard of that and I've personally used a second PCM with a different VIN back when LS1Edit wasn't available yet for the '02's (I was running a PCM with a '00 flash and a friend's VIN) . Never had any issues with mismatched VINs.
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Old Apr 14, 2004 | 11:00 AM
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i've heard of the BCM-PCM connection, on vettes, and v6 cars, (but not confirmed any of them)

but never on a LS1 f-car. the BCM just provides a simple 5volt50hz square wave to allow starting conditions, nothing on the Serial Data Bus.

Ryan
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Old Apr 14, 2004 | 11:07 AM
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Originally Posted by Windy City


Never heard of that and I've personally used a second PCM with a different VIN back when LS1Edit wasn't available yet for the '02's (I was running a PCM with a '00 flash and a friend's VIN) . Never had any issues with mismatched VINs.
yeah sorry only with serial VATs - didn't read the sig in the post
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