Originally posted by ButtonPuncher:
Wow, Stazi. I hope that you don't teach for a living.


Nobody has ever listed the operational limits for our MAF. What are the tolerances and within what temperature range? If the MAF is trying to keep the wire at 400F, even a crappy intercooler dumping out 200F should be within range.

Also, I'm guessing that the PCM biases the MAF readings based on the IAT. Again, within what limits?

Until someone lists specifics, we can only figure it out through trial and error.

Calling people retarded just because they are trying to learn just isn't cool.

BP



Then stop guessing and start learning. If you want to learn about FI and Fords, look into what Focus and Mustang owners are doing and you will see what applies to us. CEG is not a one stop shopping source for info.

The IAT does only one thing, see what temp of air your engine is taking in. The PCM uses that info, not the MAF.

A MAF sensor allows the PCM to see how much air the engine takes in by trying to keep a wire heated a specific temp w/ 0-5 volts. More air = more volts to keep the wire heated. .... less air needs less voltage to keep it heated. When you have a turbo blowing it's charge right on it, what would you think that's doing to the MAF and how accurate it would be?

There are MAF's designed to be used as blow through by SCT, Pro-M, ect. But OEM MAF's are better used as draw/suck through.


2005 Ford F150 SuperCab FX4 1964 Chevrolet Impala SS 1998 CSVT: 354HP/328TQ @ 10 psi, now gone