Has anyone else experienced roughidle with the 5.4 only after adding an fipk? i just wanna make sure i didn't screw somethin up when i installed it.

'00 Supercab 4x4 Lariat 5.4,3.55 open.class III towing package,premium audio(6 disc changer) leather captains chairs

Mods:K&N F.I.P.K. gen.2,t/b spacer,single glasspack with a y to dual exits,3'' tips

 

Did you re-set the computer ???? Disconnect the negative pole, pull head lights on for about 10 minutes. Shut headlights off and then re-connect the negative. The computer is probably expecting a certain amount of resistance BUT know that resistance is less so it may be having problems idling.

Have Fun & Keep on Truckin'
Dean

 

Mine idled exactly the same after I installed my K&N FIPK. Did u check all of the electrical connections and the air tract for leaks? It looked to me that the MAF gasket could leak if the gasket was over or under tightened; just an idea.

 

That's common. Each case I've seen has been something left a little loose. Re-check all of the electrical conections and hoses. You'll probably find it.

 

I installed the Airforce One and the instructions stressed for the installer
not to cover up the vacuum tube fittings when pushing metal tube into
fitting at throttle body. Hope this makes sence. The fitting at the thorttle
body has at least two fittings for vacuum lines, if you slide your tube in
too far, you will cover at least one of these lines and cause rough idle.

 

a jumpy idle after wards is normal, it happened to me and now happens everytime i reset my computer, and it takes about 200-300 miles to get relearned. i have a superchip and when i added my FIPK, there is just a LOT More air coming into the intake, so the comptuer wasnt quite ready for that...but after a few miles, the computer has time to relearn. dont worry, nothings wrong, but every time you reset the computer, expect this to happen.

 

I accidentally left the MAF connector off when I installed mine. Was a little rough but not bad.

 

i reset the computer and it rums great now,but still a little rough idle.i left the maf sensor and air temperature sensor wires off yesterday and it ran good.is it just me or does that seem a little odd?if it runs good without em hooked up,what's the point of them being there?