Paging Truck guys: PCM Question (PCM Compatibility)
10-31-2005, 10:07 AM
#1
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Paging Truck guys: PCM Question (PCM Compatibility) I've seen a few threads lately asking about the 5.3/4.8 etc... PCMs ... but I dont' have any first hand experience with them so can't offer a definitive answer..
my question is... w/F-Body's 98 is the only "different" PCM... 99-02 are all similar enough that they can be swapped around...
Is this the same for the truck PCMs? If so can someone provide a break down of the years and engines that use the same PCM?
my question is... w/F-Body's 98 is the only "different" PCM... 99-02 are all similar enough that they can be swapped around...
Is this the same for the truck PCMs? If so can someone provide a break down of the years and engines that use the same PCM?
10-31-2005, 10:31 AM
#3
TECH Senior Member
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I don't have a truck parts manual 
but one issue I can see is GM using tons of different part numbers even though they're basically the same... like the 99-00 F-Body PCM is 1 part number, and 01-02 is another, yet they are interchangeable
Hopefully we can get a definitive answer on this... I'll then add it to the stickies as this would be good info
but one issue I can see is GM using tons of different part numbers even though they're basically the same... like the 99-00 F-Body PCM is 1 part number, and 01-02 is another, yet they are interchangeableHopefully we can get a definitive answer on this... I'll then add it to the stickies as this would be good info
10-31-2005, 10:39 AM
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Mike,
To the best of my knowledge, all of the 512 kB PCM vehicles from 1999 through 2002 use the same PCM's and many of the same OS. This is true of the 4.3, 4.8, 5.3, 5.7, 6.0 small blocks and even the 8.1 L big block. Activation or deactivation of certain PCM features differ by vehicle as does the parameter values.
I've not seen some sort of officially published cross reference list. However, I'm sure that there are a number of folks who have this information. I would wonder if GM doesn't have some sort of listing like this for use with the Tech II.
Steve
To the best of my knowledge, all of the 512 kB PCM vehicles from 1999 through 2002 use the same PCM's and many of the same OS. This is true of the 4.3, 4.8, 5.3, 5.7, 6.0 small blocks and even the 8.1 L big block. Activation or deactivation of certain PCM features differ by vehicle as does the parameter values.
I've not seen some sort of officially published cross reference list. However, I'm sure that there are a number of folks who have this information. I would wonder if GM doesn't have some sort of listing like this for use with the Tech II.
Steve
10-31-2005, 11:06 AM
#6
TECH Senior Member
Thread Starter
^^^ excellent info...
also from another thread
I'll add this to the stickies thanks guys!
also from another thread
Originally Posted by Zick
What year is it?
For 99-02 4.8, 5.3, & 6.0 the PCMs are all the same and are interchangeable. I would try and find one from a 5.3 though or else there are going to be settings that are different unless your going to get it custom tuned.
03' and up use a different PCM.
For 99-02 4.8, 5.3, & 6.0 the PCMs are all the same and are interchangeable. I would try and find one from a 5.3 though or else there are going to be settings that are different unless your going to get it custom tuned.
03' and up use a different PCM.
I'll add this to the stickies thanks guys!
10-31-2005, 11:57 AM
#7
Yup, the '99-02 truck PCMs are the same (same part number, prior to being flashed with a calibration file) as the '99-'02 F-Body PCM ... in term of wanting to completely reflash them. The only difference is the BIN file, which leads to a different GM P/N.