mailboxman
New Member
- Joined
- Nov 18, 2009
- Messages
- 38
- Reaction score
- 0
- Points
- 0
- Location
- Greensburgh PA
- Vehicle Year
- 1994 Extended C
- Make / Model
- Ford
- Engine Size
- 4.0
- Transmission
- Manual
i searched these forums and cant seem to find the answer--my idle is 1500 cold and drops to 1200 after warming up.
I reset TPS to .96 volts---I cleaned MAF with MAF Cleaner
I replaced coolant temp sensor
I replaced IAC valve today
I checked for vacuum leaks with carb cleaner and propane
I did selt tests tonight and only codes were KOER
412Cannot control rpm during KOER high RPM check
411Cannot control rpm during KOER low RPM check
538Insufficient RPM change during KOER dynamic response test/ Operator error
I dont know guys but something is screwin with me---I now have the new IAC
bolted on but unplugged--I have the old iac plugged in but not bolted on and my idle is around 650, but it goes down to 500 with ac on and will not idle when cold
any suggestions?? It seems like the computer is telling the IAC to idle fast, because if i disconnect the iac it slows down but check engine light come on
any help would be appreciated
I reset TPS to .96 volts---I cleaned MAF with MAF Cleaner
I replaced coolant temp sensor
I replaced IAC valve today
I checked for vacuum leaks with carb cleaner and propane
I did selt tests tonight and only codes were KOER
412Cannot control rpm during KOER high RPM check
411Cannot control rpm during KOER low RPM check
538Insufficient RPM change during KOER dynamic response test/ Operator error
I dont know guys but something is screwin with me---I now have the new IAC
bolted on but unplugged--I have the old iac plugged in but not bolted on and my idle is around 650, but it goes down to 500 with ac on and will not idle when cold
any suggestions?? It seems like the computer is telling the IAC to idle fast, because if i disconnect the iac it slows down but check engine light come on
any help would be appreciated