crashgoins

I have a 91 GT converible,When I'm driving in any gear at about 2500-3000 rpms and I let off the gas it stays at 2500 rpms and won't go down. Stop the car rev it up and it still won't go down. Pop hood, unplug the idle control valve and it idles great. Can anyone help!!

Thanks

spike306

check your throttle linkage, sometimes they break and can cause it stick like that

crashgoins

Could be the thottle linkage! When the car is reving up I can turn it off and then turn it back on and it dosen't do it anymore. Does turning off reset something?

Thanks

spike306

try this before you do anything, clean out the throttle body assembly. it gets a lot of build up that can cause your idle to do wierd things. take off the cold air tubing, and reach into where the butterfly is, and cleand out all that crud

crashgoins

Thanks, I will try that tomorrow , again thanks I hope that is all it is!!!!!

crashgoins

Looked at throttle linkage, check, cleaned throttle body and idle air control valve, check, guy at parts store said it could be the map sensor, any thoughts, thanks

spike306

chek map sensor and throttle positioning sensor

crashgoins

It was the map sensor, changed yesterday and all is

well!!! Thanks for all your help spike306!!

spike306

that's awsome, glad to hear that your back representing the stang nation

stalker92

(Spike306) My idle is sticking at 1500 for a couple seconds then drops to 1000 for a couple seconds then drops to normal sometimes, but mostly doesnt come down. I cant seem to find the problem, the ecu and idle motor arent that old, tell u the truth i have no idea wats wrong, id appreciate if u could help. thanx