2022 Camaro 2SS A10

[kinglock96]

I've been trying to practice tuning on a stock car. I have installed a flex fuel sensor but I'm currently tuning on 93 octane. I'm currently stuck on the MAF tuning. I have the car in MAF only mode I complete a driving log I stop the car and copy and paste the EQ error ratio in the MAF table and multiply by half %then write my ECU and rinse and repeat. I notice my MAF tune does not dial in. Theres been times where I've stopped the car didn't make a change and re-logged and it shows different data from the first drive There's even been instance where I was getting knock at 5 degrees. I'm just wondering where am I messing up at?

[TriPinTaZ]

The fuel trims will always move around. I don't recommend trying to tune the MAF on a stock vehicle. The MAF doesn't need to change unless you change airflow. Fuel Trims will never be 0%, they change with humidity, temperature and elevation. After flashing a tune, the ECU usually performs a catalyst test which will throw the fuel trims off a bit for the first 1 or 2 key cycles, particularly at idle.

[Abdulaziz T Hadi]

return the MAF values to stock
make the car on speed density
start with VVE until you reach up to 5% - 3% correction

[EliteTunedSchool]

If you want to play around with this disable the LTFT and just use the STFT average and see how it goes that way.

[kinglock96]

I put my car into Speed Density only mode but I noticed I had a CEL for P0700 trans code after doing a few logs and in the higher RPMS it wouldn't want to shift. I flashed back to stock tune and the P0700 is gone. This never happened in MAF only. I've attached my steps for enabling SD.

[Alvin]

There are several GEN 5's that flat out will not run in SD mode for one reason or another.

You have to build the VVE while in MAF mode.