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5 Posts
2002 3.0 DOHC VIN S......
CAR HISTORY.... car has new e3 spark plugs and new motorcraft wire's
p0303 cyl missfire
and missfire at startup code.
cyl 3 missfire, cyl 3 located at the rear at the transmission side
pulled intake and checked wire and plugs agin swap wires at coil reinstalled intake and ran cleared codes ran diag still cyl 3 miss removed intake and swaped plug and wire with #1 and #3 cyl reinstalled cleared codes and rand diag still #3 missfire removed intake and installed new coil from store reinstalled and ran diag still missfire #3 removed intake and removed injectors #3 and #6 swaped resealed reinstalled, ran diag still #3 missfire pulled intake and #3 plug ran car sound like good compression, and put plug in wire and ground good spark on #3cyl.,,, removed valve cover and inspected valve's and spring cam's all looked good. reinstalled all compoents and still #3 missfire
i will paypal 5 dollar's to anyone that get me a solution without just replacing parts
im thinking it could be the inj driver on #3 is bad i dont know how to test for that thought,
thank you for your help
CAR HISTORY.... car has new e3 spark plugs and new motorcraft wire's
p0303 cyl missfire
and missfire at startup code.
cyl 3 missfire, cyl 3 located at the rear at the transmission side
pulled intake and checked wire and plugs agin swap wires at coil reinstalled intake and ran cleared codes ran diag still cyl 3 miss removed intake and swaped plug and wire with #1 and #3 cyl reinstalled cleared codes and rand diag still #3 missfire removed intake and installed new coil from store reinstalled and ran diag still missfire #3 removed intake and removed injectors #3 and #6 swaped resealed reinstalled, ran diag still #3 missfire pulled intake and #3 plug ran car sound like good compression, and put plug in wire and ground good spark on #3cyl.,,, removed valve cover and inspected valve's and spring cam's all looked good. reinstalled all compoents and still #3 missfire
i will paypal 5 dollar's to anyone that get me a solution without just replacing parts
im thinking it could be the inj driver on #3 is bad i dont know how to test for that thought,
thank you for your help