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Has anyone figured out why the 2005 Dodge SRT4 operating system pulls timing around 3800rpm? I have tried different tunes, different ignition coil, wires, plugs, sensors. If I flash in a 2004 OS it...

Need this resolved ASAP. When I select 2 bar map in the scanner I get a 0kpa reading. Come on guys, fix this please.

I tuned a Procharged Corvette 2 bar speed density open loop with a wideband. Car runs great, follows my commanded AFR's. I switched to closed loop and it keeps the car at stoich until PE mode. So...

Well, I finally gave up on ever getting a handheld. I ordered EFI Live and Autocal. I don't understand why you guys can't come up with a solution so many of your loyal customers need?

I have had this same issue with 2 different vehicles since updating to the newest beta. Wiring has not changed.

I have had to pull the ECM fuse on a few cars after a flash.

We have a 2002 Firebird here with a LSX 427, Procharger F1C. It is idling at 850 rpm. 16 degrees timing and 85kpa? Is this normal? I am at 4500 feet.

Thanks!

How is your fuel pressure during WOT?

Here you go

I'm working on it. It reads really slow.

I have 2010 Camaro SS with a VortechSC here that was tuned with SCT. They lost the handheld so I was going to retune it with HPTuners but it wont read the file. Diablosport Predator did and I can...

I have contacted and posted many times about all Duramax/Allison flashing and reading issues. I found that I have to unplug the TCM and then I can read the PCM without issue. I actually went back...

Check your RAF table also. If your Base Running Airflow table is not tuned then it can cause the car to die and surge at idle and low rpm's like coming to a stop.

Open loop my afr's are 14.4 at idle. Closed loop it demands -20 on the trims. Wierd.

I checked that. They both are correct and both read the same trims.

My 05 Vette with cam and heads goes from +20 to -20 within minutes just idling at 190 degrees????

I can't get the trims to zero out. Any ideas?

The switch points are stock, and they are lively. I am searching for a leak somehwere. The injectors are Trick Flow 60's. Another shop tuned this car and built it. So I am trying to fix it. LOL....

U have a 2002 Trans Am in my shop and bank 1 O2 reading is -30 and bank 2 is +50 on STFT. LTFT's are off. Any ideas?

Here is a GM TSB from 2009 about aftermarket tuning. Does HPTuner software zero out the Verification Number like this arcticle shows?

INFORMATIONBulletin No.: 09-06-04-026ADate: October 28,...

I had to replace a PCM in a 2005 Corvette C6. I could not change the vin to match the old PCM. It would tell me I did not have the correct license. Why can't I change the vin? I was able to tune...

It ended up being that the shop that installed the engine did not tighten the power wire to the starter. So when I cranked the car, it would jump power to the headers. Once we tightened the bolt, it...

I aplied the Maf Patch to this car but it still acts like it is running out of fuel above 11000htz. The table in the tune and the scanner only go to 12200htz. How can I adjust fueling about...

Ill check. Another shop in town built this car and installed the harness. The car will run great for days, then all of the sudden do this.

Thanks

It's the same injectors and data I've used multiple times.

Hi, we tuned a 2001 Corvette, 376 stroker, D1SC Procharger. The car runs great, but will randomly go rich on bank 1 and lean on bank 2. If you turn the key off and back on then it clears up. ...