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Even when it was stock it would do that. what could cause the learning of the idle and what is the easiest way to fix it?

I have programed this truck before and everytime we do it doesn't want to idle for about a day. Then it starts running fine. why does it do that. another note, it used to do that with a hypertech...

thanks, Ill try that. I new I was getting into a lot of learning experiences by doing this swap for a friend. The wrenching part is nothing to me, I can do it in my sleep, but the programing, it...

I tryed unpluging the maf. did not help though. I haven't changed anything yet. Just need to know where to start.

04 gmc, lq4 swap with an extremely big cam. will not start without pushing the throttle down. It is flooding out trying to idle also. I'm very new at programing for a cam. Need help asap, vehicle is...

Ok, i talked to the gm rep when he was at the dealership the other day. He said that any programing even if it is back to stock will void the powertrain warranty. It will also void any other warranty...

I'm going to double check. I know we can tell even if it is set to stock if the pcm was flashed with ls edit. I have programed another techs truck, I'm going to change it back to stock and double...

Yes they were both diesels. I have seen one vet that would could verify a reflash even though it was stock, but it was programed with ls1 edit. I programed one of the other techs trucks "5.7 camed,...

I didnt read this before I started the other thread. They can detect on any vehicle now. and its a bumper to bumper warranty void. like I said on the other thread, just thought I would let others...

gmpx, I thought the same thing but I work at a dealership and we have had to void warranty on 2 trucks so far. and yes for some reason it does void warranty bumper to bumper even under 36k miles. I...

I'm not sure if I need to post this here or somewhere else, everybody probably knows that GM sent out a bulletin on how to use a tech 2 to find out if a vehicle has been programed. that bulletin also...

B3303 doesn't exist on the 1998 5.0 "L31"

I haven't had time lately to use my efi live, but I flashed it again and had no problems. I am still wondering about the rev limiter?

I am having trouble finding where to change my rpm limit. I was wondering if anyone could explain to me? Also I am having some problems flashing my computer on my 1998 5.0, It always comes up some...

I can't find my .cal file. Where do I find the "calibration files?" Im new to this and I can't find where I need to put the .cal files and where I need to make the L31 folder.
thanks

Can't find my .cal files I need help? I can't figure out how to make the folder or anything. I need detailed help if anyone would like to help me.

thanks

I was wondering if someone could explain how to hook up and use the wideband?

does anybody have or now where i can get the stock tun. for my 04 4.8. I have a hypertech on it and can't get it off. thanks