Plugs are brand new as well.Pull the plugs and see if they are blackElectrical - How To Pull Codes From EEC-IV In 86- 95 5.0 Mustangs
@Noobz347 - The code dump procedure isn't in the sticky - you may want to add it... Dump the codes: Codes may be present even if the Check Engine Light (CEL) isn't on. Dumping the computer diagnostic codes on 86-95 Mustangs Revised 26-July-2011. Added need to make sure the clutch is...stangnet.com
Yes I made sure that I had the correct plugs and yes I have the e6se heads as well. This is why this situation is becoming more confusing as I go on.Did you get the right plugs? Do you know for sure that you have stock (E6SE) heads? Those heads were one-year-only (1986) on the Mustang and they had special plugs as well (AWSF42C, not ASF42C from every other year). Did you put the plugs back in the correct (counter-clockwise) firing order?
1982-95 H.O. 5.0L firing order: 1-3-7-2-6-5-4-8
Damn near bone stock, nothing that would alter the engines performance by any means. New valve covers, new fuel injectors of same 19lb flow, new sensors.How about a list of mods?
I actually have not, is it worth dwelling into?Have you checked your FPR?
Yes. I had a dead one new in the box. Did same thing,you couldn't even stand in the garage the fuel would burn your eyes.I actually have not, is it worth dwelling into?
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