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1993 Mustang 4 cyl D1L1

Posted: 2025 Aug 17, 14:19
by ATPCR
I hope that this is the appropriate category for this question.
I have a 1993 Mustang powertrain in a Ranger at my shop that has had a few modifications. One being EGR delete. Is there a bin file with a partial xdf file that has been started that would include EGR delete and the ability to make fuel injection data changes? Maybe some timing adjustments too?
I would like a simple explanation as to what is going on with the eight spark plugs. Longer fire duration?

Re: 1993 Mustang 4 cyl D1L1

Posted: 2025 Aug 17, 15:45
by decipha
No, you have to be a premium member to request development.

No, its just a set of wasted spark plugs that fire on the exhaust stroke for emissions. Some claims say it could help make more power, but ive never heard of anyone thats removed them and felt a power loss.

Re: 1993 Mustang 4 cyl D1L1

Posted: 2025 Aug 18, 08:18
by ATPCR
Thanks Michael. I'll fix the EGR situation with the tri resistor circuit. The owner can't go back and reinstall the EGR parts. The aluminum intake has had that boss shaved off and welded up. I'll recommend that he leave everything else stock. Thanks for the quick reply.