Forum: Tuning

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...

Hey guys and gals, Put my nelson tune in today on the 05 LM7. I cant get the SES light to go off. Any suggestions? Thanks Jeff

I just put my PCM back in with the 93 hot tune, the check engine light came on, saying that it is misfiring. The guy at the dealership wanted to...

Hey all, I have the Predator tuner, and I see it has a power enrichment and spark adjustment. Going by the mods I have in my sig, what do you think...

Finally got the supercharger fixed and now its running lean. Scanner says right and left banks are lean. Iv'e had Allen back the timing down already...

Is there any performance tuning for the new L33 aluminum 310hp 5.3? I'am looking for a handheld or mail order but It seems I can't find one for the...

Hey allen, Know you have basic gas tunes etc but do you have tunes for E85 (ethanol 85 octane)?? Local gas station is getting a couple of E85...

Im thinking about buying either HP Tuners or EFI Live. What is the easiest to use and how easy is it to totally screw up your truck tuning it? Are...

can u use a head held to change tire size/shift points with a custom tune installed?

http://www.performancetrucks.net/forums/sh...ad.php?t=346296 they are doing a poll over on perf trucks. let's show our support for allen over...

I get a P0153 code and #5 & #7 plug wires burning quite often. This tells me that the sensor is not getting hot enough because it happens when I am...

I just bought Hptuners so I won't be needing my autotap anymore. The cable and cd are in perfect condition, only been used a few times. I am asking...

If I could get my hands on a stock 2005 truck GM fan/should and harness. What do I need to do to encorpate it into my 2004 harness and PCM. I have HP...

First off i wanna thank everyone for the feedback i got and now, i believe i'm ready to purchase a tuned pcm, but i recently read a article in chevy...

is there any fix for this that anyone knows of

If I got 3:73 Gears :rock: instead of my 3:42's How bad will that throw off My tune, Does it just need a Speedo Correction or do I have to Go back...

Anyone heard from Allen? I've been trying to get a hold of him since Wednesday, but haven't had any luck......Well, let me rephrase that. I tried...

Okay, this is what my problem is, im very interested in the nelson tune, but for right now i dont have a beater car to drive in the winter months so...

I need some help with PCM tuning with my 02 silverado 5.3l LM7. i have a few mods already done to it, but i recently bought a predator programmer...

Alright, my truck has a 87/89 dual tuned PCM from Allen in it... Normally, I fill up with regularole 87 octane gas, but on my last fill up I decided...