Originally Posted by
sprinto7
Oh, I do understand your post. but you are not correct.
The iron block 1.4 uses a blend of MAF and VVE. The MAF is not disabled from the factory. At least not in my understanding.
The factory VVE covers every possible rpm, load, temperature the stock set up would normally get into. 400--8200 RPM, and .30 to 3.0 pressure ratio. That's why you can set the MAF engage and disengage points so it "fails" with the error code and turns the running over to the VVE/SD. ANY change you make to the stock set up that changes the airflow through the engine will require changes to the VVE. With HPT 4.4.4 the VVE corrections are quite simple, if you understand and follow the directions. The tricky part is to use Averages and Copy by 1/2. Watch Goat Rope Garage about SD tuning on the group 4&5 GM ECM's.
Del Long