Rough idle, slight stumble

[kenny]

IAC is about 25 at idle. For some reason it keeps fluctuating? (anywhere from 20-35)

TPS is at .44

The stumble is when you slightly hit the gas, stumbles, then it's fine.

Rough idle is just that, rough. Idles from 650-725...

 

[Russ Merritt]

What chip? Make sure you have atleased one screen in MAF, try putting both screens in if you took one out. Everytime this happens to my car it's because I f%$#@! with the MAF. Some chips don't like when you take one out. Good luck!

 

[kenny]

Not sure of the chip. Just bought the car a couple days ago. I'll have to check to see if there are one or two screens in the MAF.

Also need to change the fuel filter.

 

[Quick6'n'-K.C.]

slight stumble as you ease into the throttle?

does it do this everytime?

i noticed once i changed over to the msd 50's my silver car does the same thing-
but the car has no maf screens and a reds 107 chip all the time-

 

[kenny]

Ya does it all the time, it's like a slight hesitation. Kind of annoying, but it hasn't stalled or anything.