Hello, I am working on an 8Fgcu25 serial 19741. Unit has an idle of 1275 according to the multifunction display and clearly is too high. No codes. No broken wires that I can find. I have checked all that I know having worked on these units since they were new. I haven't ran across this issue to this point. Has anyone seen this issue? Drives as it should, the only time it can idle down is unplugging the throttle body. At that point, there is a code and obviously no throttle response.
Thanks