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It?s a 2004 GTO. The ecu has my vin in it or is supposed to. Car is on 2 bar os now. Normally these require tech 2 to link bcm and pim, but not sure if that is required since the ecu is setup for...

What is needed to install a new ECU? I have a new ecu linked to my vin and vats disabled on my current ecu.

What do I need to do when I install the new ecu? Is a tech 2 mandatory to link to my...

It physically goes wide open and reads 100% throttle key on at 4.41 volts. This is a 2004 GTO when you push the pedal to the floor the blade opens fully to the stop it's not the linkage. Also when...

Interesting issue...

I'm running a BTR equalizer intake for cathedral port heads with a 102mm 4 bolt throttle body opening. I'm using a fast adapter to run my 3 bolt stock ls1 throttle body. I...

Have you verified no vacuum leaks? If so, have you logged your desired air flow by ect?

I've been on an older version of hptuners for a long time without issues. Just recently I decided to update to the latest version. Now my issue is my mpvl pro interface fails when trying to change...

Another thing I should mention is my commanded AFR is based upon E70, but my AEM wideband is on the gas scale so my AFR error looks jacked up. I decided to leave my wideband on the gas scale because...

Car is a 2004 GTO stock bottom end ls1 with a cam and procharger. Fuel is E85 which actually tested at E70. This particular pump is consistently E70 so it works well for me. This log is from a wot...

Updated to the latest version solved my issue.

Ok I've got all of the injector data I need and can change that with no issue. I don't have an injector limit on the 2004 GTO with the p59 ecu, but apparently I have a stoich limit? When I tried to...

The car is a 2004 GTO sbe ls1 w/cam and procharger on 9 psi.

I currently have the car tuned on pump gas with a drop in dw300c pump with oem regulator in the oem bucket in tank. I also have 60 lbs...

You have your 3-4 shift wot mph set to 215 mph. Your mph for the other shifts may be a little high as well.

You need to get your AFR reading in the log. Follow the steps in this forum for idle tuning. Make sure your maf is failed and force open loop. Disable fuel trims. Get your Ve table dialed and...

Changing my plug gap from 0.032 to 0.026 seems to have solved my problem.

Temps are in the 30's for the next week. When it gets warmer I get the car out again to test. Sure hope it isn't valve float because I have nearly new BTR 660 lift springs in it.

What do you make of that little hesitation in my log in 3rd gear between 5000 and 5500? I honestly didn't even notice it during the run it seemed to pull hard all the way until the shift. Motor...

Of course I entered the injector data. The highest I see my duty cycle go in the log is 87% which is fine and my AFR at the time was high 10's low 11's so that all seems fine. Plenty of people use...

Valve springs are BTR .660 lift. Fuel system is drop in stock bucket dw300c and 60 lb/hr injectors using 93 pump. Temp was 51 degrees on street tires getting a little tire spin. Plugs are tr6...

Setup is a cam only sbe ls1 with a d1x procharger. This is the first setup I've ever tuned. This is a log of my first full 3rd gear pull. I had done a lot of logging and tuning before this to get...

It looks like the 2 bar map sensor part number I need is 1261-5136. Currently my MAP sensor linear is 94.43 kpa and the offset is 10.33. So when I switch to the 2 bar map I need to change the...

Yep I have the original tune the shop did for the cam only setup saved. I haven't actually started on anything yet other than installing a wideband and boost gauges. At this point I'm just reading...

It looks like I should just switch to a 2 bar map speed density OS then write entire. Enter all my new injector data. Setup my boost PE as well as the PE enable settings to get my AFR under boost...

The cam is a 228r from texas speed. I'd really like to keep the maf for now if I can. I'm only planning to run about 8 pounds of boost until I have a built motor.

Another question is assuming...

Thank you for the reply. I currently have a wideband installed on the car. I haven't actually installed the procharger yet. I'm studying the tuning side ahead of the install because tuning is new...

I have a cam only ls1 that was previously tuned for the cam. I'm looking to install a procharger soon as well as fuel pump and injectors.

I'm a complete noob to tuning so I plan to spend several...