Ok so the other day i was measurin the front of my car checkin to see about what size intercooler i could fit under there and i noticed that since i have a cold air kit my filter is right behind my fog light hole and my fogs are messed up anyway so i pulled the lights out completely (it actually dont look bad) to get more air to the filter. well i noticed a little performance gain but i also now have this thing where my car sputters like its not gettin fuel but not bad. just little sputters once every like 5, 6 seconds. and only when i'm cruisin at like 45 or 50. it doesnt do it while im accelerating. anybody know what this could be from. Is it cuz i'm still runnin the stock MAF and now its gettin to much air to handle? it never pegged so i didnt change it.

** o and i know this is the problem cuz i covered the hole to see if that was causing it and it quit.

 

Put them back in

 

well duh i just wanna know what could be the problem. why the hell would better airflow to the filter hurt it????

 

Did you change the position of the filter? I have heard on some other sites of guys having troubles with airfilters not mounted down or shifting while they are driving messing up their computer settings some how causing some jerking.

 

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You cant have air without fuel.

 

how much more could it possibly be

 

bump

 

It's turbulence in the MAF (do you still have the screen in there?). When you pull the foglight the filter is getting a straight blast of air and that turbulence is making it through to the MAF. Since the MAF only measures a relatively small sample of the total air passing through it the turbulent flow will cause it to give false readings to the PCM causing the computer to incorrectly calculate the proper amount of fuel for the actual amount of air flowing through the whole MAF and being incorrectly measured.

 

thanx. i actually had a feelin that it may have had somethin to do with that.


O and no the instructions on my blower kit told me to take it out(screen)

 

There's a lot of confusion over what the screen is for, it is NOT to keep foreign object out of the intake. The MAF only samples a small portion of the entire air flow through it's bore--so forit to get an accurate measurment of the total amount of air flowing through it the flow needs to be "straight and steady". [/align][/align]An intake lackinga good air horn at the filter output, and/or not having astraight run before the MAF can present turbulent air to the sensor's body--then the sensor itself may read a sample of the flow with a density that is not representative of the total flow and mis-report the air flow to the PCM. [/align][/align]The screen isn't really necessary with the OEM airbox because it's a rather well designed CAI. I think Ford included it as "overkill" to make damn sure flow through the MAF was steady. You could try moving the MAF further "downstream" from the filter or elbow to see if there's a more even flow...[/align]