PE enabled, but not activating (0411 8322)

[woody80z28]

I have some MAF cleaner, I'll give it a good cleaning.

I would have thought the tube style MAF would be accurate regardless of intake configuration, but I read otherwise. Like I said, I'm new to MAF stuff. If you're certain that doesn't matter...I'll believe you.

Mods consist of an intake tube and a muffler, so I would agree the VE should be pretty close. The fuel trims change quite a bit now, but maybe that's all influence from MAF.

[Fast355]

I have some MAF cleaner, I'll give it a good cleaning.

I would have thought the tube style MAF would be accurate regardless of intake configuration, but I read otherwise. Like I said, I'm new to MAF stuff. If you're certain that doesn't matter...I'll believe you.

Mods consist of an intake tube and a muffler, so I would agree the VE should be pretty close. The fuel trims change quite a bit now, but maybe that's all influence from MAF.

In my experience the intake tube will throw the calibration out substantially on the MAF. I have a go to LS truck MAF calibration for the 07+ Airaid MIT that I like to use with earlier E-Fan conversions. I used my sisters low mileage bone stock 03 5.3 Tahoe with the MIT and E-fans as the only mods to create the MAF table years ago. Only reason it was even moded was the mechanical fan exploded and destroyed the shroud and intake tube.

I will say the MAFs on GM are far less picky than the cartridge MAF on Nissan and Infiniti. Even if you leave the OEM MAF in the OEM housing. Only change the intake hoses for freer flowing silicone hoses and the car will run rich. Luckily I combined the intake hoses with headers, high flow exhaust and a custom 2.5" dual exhaust that have an effect of leaning the car out.