flainn
Member
- Joined
- December 3, 2012
- Messages
- 23
- Reaction score
- 1
- City, State
- Los Lunas, NM
- Year, Model & Trim Level
- 1991 Ford Explorer XLT
I did my first KOER test this afternoon and got codes 12 and 13.
12 is “RPM [at idle] not within self-test upper limit”
13 is “RPM [at idle] not within self-test lower limit”
My truck has been idling high since I got it, but otherwise is running great.
I don't understand how both those codes can be true at the same time, unless maybe that means a sensor is sending no signal at all. ?
12 is “RPM [at idle] not within self-test upper limit”
13 is “RPM [at idle] not within self-test lower limit”
My truck has been idling high since I got it, but otherwise is running great.
I don't understand how both those codes can be true at the same time, unless maybe that means a sensor is sending no signal at all. ?