Idle issues
 

While you guys are on the subject.... :)
My 1992 ssp runs like a raped ape. Starts great, idles great, but.............. once you've ran it down the road after warming up, the idle runs high. I have to kick the gas peddle a couple of times to get it to come back down to 900rpm or so. Wants to idle over 2000 rpms. Replaced air filter, sprayed carb cleaner to clean it out, seems to help some, but still runs high idle.

Any other ideas I can try before I take it to the mechanic shop ?? Thanks

fixed !!!!
 

what a complete pain in the butt.

MAP sensor was toast, along with the TPS.

replaced both and she runs great again !

so in total I replaced the following:

oil
oil filter
spark plugs
rotor button
distributor cap
fuel injectors
upper plenum
valve covers
coil
alternator
fuel pump
fuel filter
fuel pump relay
PCV valve
several vaccume lines
air filter
battery
battery cable
solenoid
MAP sensor
throttle position sensor
cleaned EGR
cleaned throttle body
cleaned IAC
changed out transmission fluid
changed out rear diff fluid
installed steel wheels and gatorbacks

tomorrow installing:

new motor mounts
fan shroud
overflow tank
windshield washer fluid tank
three bulbs in dash
new stalk controls on steering column.

After all this I highly doubt I will be selling this car.

I say hang onto her Jim, that one is worthy of a permanent spot in the collection if you ask me.

yep I am pretty certain I am going to keep the 82 thru 86 four eyed cars.

As mentioned before, check the IAC and clean it if necessary. Your symptoms sound similar to what I had happen on two of my Fox-bodies and cleaning the IAC was the quick and cheap fix.

See this guide:

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

86 coil replacement
 

my 86 ran like sht and replaced the coil now we are :)

It sounds like a faulty TPS, but I would start by cleaning the throttle body, IAC, and throw in the mass air meter (very carefully) for kicks. :)

it's fixed guys, but thanks for the advice. I learned alot on this one.

Glad to hear that you got the problem fixed!

That sounds like a great idea, but I am fairly impartial when it comes to early SSP's. :)