Mark Maxon
Registered User
I have limited access, so I will ask for your help? I have an SC that has a 2 year old engine and last week had the head gaskets replaced, It seems to be fine other than it idles like it has a cam.(rough) and it trips code 77, 74 & 13 an will not idle down. It acts like the throttle position sensor is not reporting? I have reset the computer several times and checked to see that it is plugged in and it seems to be. However is there something the guys (mechanics) did that may have damaged or knocked out of wack the Throttle position sensor when re-assembling the engine?
The shop that re-assembled it can't figure it out. It runs up fine with no miss.
sounds like a miss or rough idle, I checked all the injectors and plug wire to make sure they are connected.
I usually ask an SC buddy Sam Malone, but I lost his email address in a computer crash. If you could post or get several opinions it would be greatly appreciated.
The shop that re-assembled it can't figure it out. It runs up fine with no miss.
sounds like a miss or rough idle, I checked all the injectors and plug wire to make sure they are connected.
I usually ask an SC buddy Sam Malone, but I lost his email address in a computer crash. If you could post or get several opinions it would be greatly appreciated.