mcconnaughey
NAXJA Forum User
- Location
- cincinnati, OH
I have a '90 4.0L that starts fine and runs fine as long as the temp outside is above 50F, but when below it will idle around 1500-1800 rpm. This only happens when I am on the highway/ just came off. It does this for a while on the side streets and then idles around 1000 rpm. I tried shuting the engine off and restarting to reset anything, no luck. It will only idle down after 5 to 6 min of off highway use (side streets).
I replaced the Map sensor the other day and the motor temp gauge reads normal (190-200F). I'm not sure if the computer has a seperate temp sensor that is possible faulty or a stuck TPS? The Jeep does have 195K on it.
Any help, as always, will be appreciated.
Thank you,
Alan
I replaced the Map sensor the other day and the motor temp gauge reads normal (190-200F). I'm not sure if the computer has a seperate temp sensor that is possible faulty or a stuck TPS? The Jeep does have 195K on it.
Any help, as always, will be appreciated.
Thank you,
Alan