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Update: I swapped out the EEC during my lunch break today and that resolved my timing problem. It is now advancing normally woot! I also reset the base timing. It's purring like a kitten. After work I'll have more time to reset base idle (had it high for the surging idle) and set the TPS...

AZ and OR. both said back ordered at the manufacturer. However, I googled the part number since it was the same for both AZ and OR and found it at some random auto parts place I haven't heard of before, and for about 10$ cheaper. Hopefully, this will be the end of my timing problem.

Thanks everyone. I'll order another EEC tomorrow and let ya'll know once I receive/install the new one. Edit: there goes that idea. Both Autozone and O'Reilly's show unavailable when trying to purchase online. :(

I also just found this too which I thought was rather interesting. They'll test and repair your EEC for $109 and if it passes all tests before repair or is unrepairable they'll refund your money...

Humm, Autozone does not show the Calibration codes such as C3W. It only shows a partial F3ZF number. For instance, my EEC shows F3ZF-12A650-FA but Autozone only shows "O.E.M. F3ZF-FA". Anyone know if that is the same along with the same Calibration code?

Wow, that I didn't know. I frequently shop at autozone but did not think for a moment that they'd have an EEC. It's far cheaper than the others I've found too! Thank you!!!! As far as fordfuelinjection.com, they've been down for the past ~week.

Thank you for the reply. I've successfully soldered capacitors on LCD monitor circuit boards before based on a web article which was pretty easy but actually troubleshooting electronics on my own (without a guide) is beyond my abilities. However, looking burnt traces or for bulging capacitors is...

I upgraded the distributor after the problem started, i.e. the problem still occurred on the stock distributor too. The TFI on the original distributor was only about a year old as well.

OK so I tested this and got infinite resistance which according to your post is normal. I had already performed all of the other items in your post. Next? :)

Thank you for the reply. What I quoted above is the only thing you listed that I have not tried yet. I did do this from the Computer connector, just not the TFI connector. I'll try this when I get off work this afternoon.

Hello all. I have been troubleshooting a problem with my mostly stock 93 5.0 for a couple of months now and am highly frustrated. I just cannot find the problem. Car: 93 For Mustang 5.0 V8 - 170k Miles - Mostly Stock Original Engine - Block/Heads/Intakes (upper/lower) Original Exhaust Original...