Rays B4U Posted March 22, 2004 Report Share Posted March 22, 2004 Maby when you do this, you need to put out the $'s and keep the old PCM and put it back in when it goes for service? Thoughts? Actually, this is what I did. I had a junkyard PCM flashed to current factory specs, the tuned it with the Mallett specs to start tuning from. This is when I found out about the Segment ID updating. Check around, I got a PCM for $75, then $40 flash fee. m396 #00-011, Will any PCM from a 6.0 engine work or does it have to be from an SS? Ray GM changed the ECM in 03 so a 02 computer won't work. And as far as I know all 03/04 computers have the same part #. So no it doesn't have to be a 6.0 computer, the engine parameters are part of the programming not the hardware. Good Luck MN C5, Thanks for the Info! Ray Another Beautiful Sunny Day In North Central Washington! Link to comment Share on other sites More sharing options...
PCMFORLESS Posted March 23, 2004 Report Share Posted March 23, 2004 The 03 and 04 PCM's do have different part numbers. But you can use an 03 in an 04 Truck. In 04 GM switched memory vendors. Link to comment Share on other sites More sharing options...
Rays B4U Posted March 26, 2004 Report Share Posted March 26, 2004 Bryan, Thanks for the info, I might check and see what my local auto recycler has in stock. Ray Link to comment Share on other sites More sharing options...
m396 #00-011 Posted March 27, 2004 Report Share Posted March 27, 2004 Sorry Ray, I've been off for about a week, so I didn't see your ? Glad you got it answered. Link to comment Share on other sites More sharing options...
evandostert Posted March 27, 2004 Report Share Posted March 27, 2004 Torq man and line pressure. Can you have different settings for each table in regular verses tow mode?? Link to comment Share on other sites More sharing options...
deezel Posted March 27, 2004 Report Share Posted March 27, 2004 Torq man and line pressure. Can you have different settings for each table in regular verses tow mode?? Yes! You can have different settings for the following between normal and performance modes: upshift torque reduction, base line pressure, shift speeds/RPMs, and torque converter lockup speed Link to comment Share on other sites More sharing options...
evandostert Posted March 31, 2004 Report Share Posted March 31, 2004 Would it also be possible to change fuel and timing between the two modes?? so I could have 1 setting for nos. Link to comment Share on other sites More sharing options...
PCMFORLESS Posted March 31, 2004 Report Share Posted March 31, 2004 nope, just shift points and firmness Link to comment Share on other sites More sharing options...
SSminneapolis Posted April 1, 2004 Report Share Posted April 1, 2004 does anyone know what the link is to the site for purchasing PCM's. i need to pick up one to ship to my custom tuner. seeing as mine was stolen out of my truck. and the part number for the 2003-2004 PCM wouldnt hurt either. Link to comment Share on other sites More sharing options...
adams2003 Posted April 1, 2004 Report Share Posted April 1, 2004 does anyone know what the link is to the site for purchasing PCM's. i need to pick up one to ship to my custom tuner. seeing as mine was stolen out of my truck. and the part number for the 2003-2004 PCM wouldnt hurt either. They stole your pcm? Man it has to be somebody you now then. Link to comment Share on other sites More sharing options...
xxjiggaxx Posted April 1, 2004 Report Share Posted April 1, 2004 They stole it when they broke into his truck. You could just pay him for extra money for the PCM, although you might be able to find it cheaper. -Matt Link to comment Share on other sites More sharing options...
Farmtruc Posted April 1, 2004 Report Share Posted April 1, 2004 does anyone know what the link is to the site for purchasing PCM's. i need to pick up one to ship to my custom tuner. seeing as mine was stolen out of my truck. and the part number for the 2003-2004 PCM wouldnt hurt either. I feel for ya, those thugs need to be beat. The 03/04 pcms have the service number ending in 605, any junkyard should be able to set you up. good luck, allen Link to comment Share on other sites More sharing options...
SSminneapolis Posted April 1, 2004 Report Share Posted April 1, 2004 it was the extra PCM...the one that i had to return...the one under the hood is fine and the truck is running like a raped ape... Link to comment Share on other sites More sharing options...
zippy Posted April 7, 2004 Author Report Share Posted April 7, 2004 i have a 99 tahoe that needs programming. any idea's on who to have it done by or where to get the software to do it. the only programmer i see that lists it is ed wright. Link to comment Share on other sites More sharing options...
deezel Posted April 7, 2004 Report Share Posted April 7, 2004 i have a 99 tahoe that needs programming. any idea's on who to have it done by or where to get the software to do it. the only programmer i see that lists it is ed wright. What engine? What PCM #? I think the Tahoe should be same PCM group as the trucks. (You could probably check a few part #'s to verify). If so, then any tuner with LS1Edit (unlimited version) should be able to help you. Link to comment Share on other sites More sharing options...
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