Max and idle MAF value on stock engine

Pumaswapedmk5 · Sep 7, 2024

Hi,
My puma 1.7 swapped fiesta is giving a max MAF reading of 85,7 g/s. Translated to bhp there are approximately 107 bhp. The car runs smooth and perfect but I want to know if this reading is normal or I have issues to sort. To check the MAF sensor, what is the value at idle (850 rpm)?

Yapo_Kakal · Nov 20, 2024

Torgue can show this value? If it can, will check today

Pumaswapedmk5 · Nov 21, 2024

Yea Torque show the value but the problem was solved. It was the maf sensor. After changing the MAF sensor, spark plugs and coils the car is pushing 116 bhp. Still too much fuel trims at high RPM and WOT. I am looking for a vacuum leak or a TPS problem. The TPS doesnt read more than 95% full open by hand. TPS value is another usefull variable to know.

Yapo_Kakal · Nov 21, 2024

Pumaswapedmk5 said:
TPS value is another usefull variable to know.

Yep mine show 16% on idle and 100 on full throttle. Could you please check Load value too? Mine showing about 25-30% on idle, and I think it is too much. Maybe it is because of worn bearings or something like dirty fuel jets..