PCM FAILURE
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Junior User
Joined: Oct 2012
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From: Sarasota F.L.
PCM FAILURE
He guys I made the big rookie mistake today I pulled my chip out while my truck was on and it shut down
Took the battery cables off an tried with and without chip still didn't bring up the wait to start light and I didn't here the fuel pump I found a used one that is a 422 is it ok to just swap it or do I have to flash the computer also could it be something else it's a 2000 7.3 f250 4x4
Took the battery cables off an tried with and without chip still didn't bring up the wait to start light and I didn't here the fuel pump I found a used one that is a 422 is it ok to just swap it or do I have to flash the computer also could it be something else it's a 2000 7.3 f250 4x4
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
He guys I made the big rookie mistake today I pulled my chip out while my truck was on and it shut down
Took the battery cables off an tried with and without chip still didn't bring up the wait to start light and I didn't here the fuel pump I found a used one that is a 422 is it ok to just swap it or do I have to flash the computer also could it be something else it's a 2000 7.3 f250 4x4
Took the battery cables off an tried with and without chip still didn't bring up the wait to start light and I didn't here the fuel pump I found a used one that is a 422 is it ok to just swap it or do I have to flash the computer also could it be something else it's a 2000 7.3 f250 4x4
What is the PCM code on your existing unit and what is the code on the used one you found? It will be 3 alpha characters and a number.
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
It's likely that your engine will start and run with DPC-422 but you could have drivability issues and a bunch of weird codes. For instance, the programming is different between pickups and chassis cabs, auto or manual, 2WD or 4WD etc...
If then WTS light isnt coming on the PCM is not awake. I wouldn't say "fried" but certainly not healthy.
If your scanner connects then your PCM is most likely fine and you have some other issue.
If then WTS light isnt coming on the PCM is not awake. I wouldn't say "fried" but certainly not healthy.
If your scanner connects then your PCM is most likely fine and you have some other issue.
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Junior User
Joined: Oct 2012
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From: Sarasota F.L.
So the used one is a pcm pct2 I have a pct3 I heard that the pct1 is the best one for shift patterns but really don't know what the differences are between em all
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Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 27
From: Mesa AZ
That is why I was suggesting that you have your dealer or tuner reflash your existing PCM. It's likely that your chip was programmed for your particular PCM code so it's worth keeping things the same in my opinion....
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