Cylinder 4, 5 and 6 Misfire

[FordTechOne]

That is a strange failure; first I’ve heard of injector o-rings leaking. Are you running gasoline? Or an ethanol blend?

 

[Dirtypope]

That is a strange failure; first I’ve heard of injector o-rings leaking. Are you running gasoline? Or an ethanol blend?

92-93 premium. Cobb stage one plus

 

[2slo4u]

Buy your esp policy online from Flood Ford you’ll save a lot of money

 

[fordraptorfun]

Had similar problem on 2018. It was wiring harness to fuel injectors a $1200 part. Thank God for ESP as dealer would not cover under warranty even though below 50000 miles

@Mountain Man Any idea what the Part Number of that wiring harness is? is it easy to replace DIY?