I have a '08 F250 with SCT tuner. Also, has DPF/ EGR Blocked. It has run great for 145k miles. On a recent trip it developed a TICK. Had it checked & they replaced 2 pulleys. Tick became intermittent.
Had another shop run BG flush through it. Engine RUNS great... no TICK. Then it came back on idle and would disappear on acceleration. Then for a week or more it was gone completely.
On a short trip today on the freeway it suddenly went into LIMITED POWER MODE. Ran fine to town. Stopped and got out tuner got these codes: UO100-101-115.
Deleted codes/ restored to stock... Ran it for 2 minutes... retuned to PERFORMANCE/ Street tranny (old tune). Got back on fwy... went back to LIMITED POWER MODE.
Ran fine all the way home. Went through same then removed both battery grounds & retuned. Ran fine for 10 miles BOOM... back into LIMITED POWER MODE. Engine sounds fine... no ticking at all.. same codes.
ANY IDEAS?
Had another shop run BG flush through it. Engine RUNS great... no TICK. Then it came back on idle and would disappear on acceleration. Then for a week or more it was gone completely.
On a short trip today on the freeway it suddenly went into LIMITED POWER MODE. Ran fine to town. Stopped and got out tuner got these codes: UO100-101-115.
Deleted codes/ restored to stock... Ran it for 2 minutes... retuned to PERFORMANCE/ Street tranny (old tune). Got back on fwy... went back to LIMITED POWER MODE.
Ran fine all the way home. Went through same then removed both battery grounds & retuned. Ran fine for 10 miles BOOM... back into LIMITED POWER MODE. Engine sounds fine... no ticking at all.. same codes.
ANY IDEAS?
