likenew94stang

My car when it's idling, and you 'stomp' it a little it hesitates (sputters??) before it finally revs. Now this whole process happens very quickly.

The car is fine once it's revd already, and doesnt seem to have any problems once you've given it gas, but if it goes back down to idle and 'stomp' it...same issue (car being warm or cold).

I put a new fuel filter on it today, and thought it might fix the problem. I use STP fuel treatment with EVERY fillup, and I dont think I got any bad gas.

Do you think I have bad injectors? fuel pump? thoughts?

Tims 88GT

You should not use, stp, or fuel injector cleaner, or any kind of cleaners in the gas. Is your maf clean? is your tps set right?

likenew94stang

may be a dumb question, but why not use the treatment?

Tims 88GT

no its not a dumb question at all, it is said to be hard on your plugs, it makes them brittle and they turn red with the right stuff. then they dont fire right. so that could be part of our problem. i have a set from using that stuff and they are red to.

likenew94stang

took the plugs out...they look brand new still. they only have 2k on them.

Any other thoughts on the hestitation?

ckyguy68

first, check your base timing. then try the 5 idle remedies. worked for me.

http://www.muscularmustangs.com/maintain.php

Tims 88GT

clean your maf

Tims 88GT

and are you just stomping it to the floor? and over time its hard on the plugs.

likenew94stang

not stomping it to the floor, Im just talking about quickly pressing the pedal. The MAF and wires are clean.

Tims 88GT

is your tps set right? how old is the air filter?