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  1. Motor Conversions
    P0638 Throttle Actuator Control Range/Perf (bank 1) So a little history of what’s happened so far: I have an EJ20X swap 4eat 2004 FXT. All accessories and intake manifold are from the stock EJ255. When I was getting the car tuned it was misfiring, brand new ignition coils, then I was getting...
  2. Problems, Maintenance, and Warranty
    For anybody with a DBW throttle getting a code for idle air control performance. Check your Pcv valve and Pcv system and make sure it’s not leaking anywhere. This was a total headache for me and I couldn’t find any previous post with an answer. Make sure the hose that connects to the Pcv valve...
  3. Problems, Maintenance, and Warranty
    2014 XT- Purchased in January of 2020 with 63k miles and now sitting at 70k miles. Two weeks ago I was driving up Mt Lemmon here in Tucson Arizona (paved road) I noticed that the throttle was being jump/lurching. Best way to describe it is when I'm between 2k-2.5k rpm and between 20-40 mph. The...
  4. New Member Introductions
    Hello everyone, I picked up my 2014 FXT at the beginning of 2020. Bought with 64k miles and currently has 70k miles. I will be posting a discussion thread about lurching/jumpy throttle. For those of you that have had similar issues please let me know.