I recently installed the Diablo flip chip in my 02 F150 S-crew 5.4L. All's well except now it constantly idles at 900-950 RPM. Can I simply adjust the idle myself via an adjustment screw, or is it electronically controlled in addition to a cable? Thanks

 

How long has it been doing this? Sometimes after a reprogram the idle takes a few hundred to settle (this can happen by disconnecting the battery too). The idle is electronically controlled.

 

Here's the brief history: I installed the chip around Aug of last year. I don't recall any idle issues then. About 3 months ago, my wife accidentally flipped the switch to off. I've been so busy, I didn't notice it. 2 days ago, I flipped it back on, now the idle is a constant 900-950 rpm. I certainly haven't driven more than 40 miles in the last 2-3 days. I'll give it some more time, then what would you recommend it it's still idling too high? Thanks

 

If its still idling high we can take a look at it, but most likely its just idle relearn the chip needs to do.

 

Thanks for the reply, I'll give it some more time to work itself out.