Hey all, I searched with no luck so here goes. 94 F150-302. The truck wont start at all unless you squirt it with starting fluid. It will stay running forever until you shut it off. The other problem is that after about 5 minutes the idle shoots to about 3,000 rpms. I have been running with the IAC unhooked. I grabbed a used IAC and it still does the same thing. I have not hooked it up to a scanner yet to check for codes. It acts like it is not getting fuel when you try to start it but if you squirt it it stays running. Thanks for any help. Travis

 

Have you pulled the codes yet?

The high idle could have one of several causes, or all the several causes. Sensor errors, accuator errors, and vacuum leaks often lead to high idle. So the best step is to pull codes to see what the computer may be "seeing" with its sensors first. Then from there you can address issues as they come up.

 

Hey thanks for the reply. I was hoping someone else might have had a similar issue and give me a direction to go in till I can get the codes out. Will reply back when I pull the codes. Thanks

 

Alright finally got a code. KOEO code 121 Closed throttle position out of range. Now my manual says if it was the TPS it would be like code 122-125 so any help is appreciated. Thanks

 

Well tested the TPS and the resistance was off the scale. Its supposed to be like 3 ohms and it was 33. Changed it and the truck started and idled beautifully. Thanks to all. Travis