Forum: Tuning

I just thought I would ask. I got my PCM back from Jesse today. Put it in and the first thing the SES light came on. I assume it is for the crank...

Is there any way to change the fan that cycles with the AC to do so on low instead of high? That buzzsaw is driving me crazy. :help: BTW - Took...

I installed new 93 oct tune in my 03 5.3 Silverado. I got SES light with code PO315. Does anybody know what this code is?

swapped out 4.8 to 6.0 runs fine but sets p0101 maf performance. can program pcm to denali VIN# fixes maf, but screws up trans calibration. any...

I know this is going to sound cheap and trying to get something for nothing :bs: but I dont have the money to pay alot to get this done at the...

for those of you free modders that have experianced problems w the descreaned maf and went back to a fresh one did yall run the same tune as the...

awesome put it in along with the ls1 fans so far so good :thumb:

I just bought this truck the end of June. It was from Rockwall, Texas and the owner apperently traded it in here in Virginia. After devouring...

Would you be willing to come out and tune something out of state? What would it cost. I am being completly for real.

:nx: From what I understand there is a horsepower increase when you remove EGR because of a slight obstruction of flow. Is there any true increase??...

You want to play your laptop magic with my '05 VHO on Oct 7the before SAR???? :jump: :jump: :jump: :jump:

My idle dropping when coming to a stop or changing into gear or park and then coming back up to speed...made me think I had an airflow problem. But...

I guess this question is for Allen. My truck is a 99 with 5.3 motor. It has been stated here that there is an advantage in switching to the...

Don't know how he did it. But got the Squirrel tuned friday night. Coming home and got on it from a stop, The MF'er got a second twice. So i've got a...

I went in to several local dealership's, and as soon as they clear my codes for random misfire, the light comes right back on. This only does it with...

ok i got my tune a couple weeks ago and day and night diffrence (thank you allen) well we tuned it for 89 and 93 octane i ran a full tank of 93 while...

I did an Idle learn on my tune after the HC swap. I thought it idled a little high when in gear (about 575rpm) so I disconnected the PCM and Batt...

Does there exist, anywhere, a narrative or outline of the operating logic for the 99 and up PCMs. I would like to read how the computer uses...

Hello all, I usually lurk around the full size chevy forum and contacted Tbyrne Motorsports this last week and ordered a Westers tune....

I jut swapped my 93 octane tune for an 87 octane with 80%TM removed and got the cats removed. Now heres the deal. With the 93 tune, the engine had a...