Ford Repair Questions? Ask a Mechanic for Answers ASAP
On this MY, the onboard computer takes over ignition timing only after the engine has started, so I would make sure ignition signals are OK before replacing it.
This diagnosis has been covered very well by fellow tech trainer Abraham Torres-Arredondo, as you can see for yourself by clicking here. However, if you prefer, I could certainly guide you through all the pertinent tests. Just let me know.