Got a p0304 code on the wifes tour, 2.5l ATX, I found this info during my search And need a little help explaining which pins to check, please!
Originally posted by GeoPappas:
The following comes from the Ford Technical Service Publication (TSP):

HD1 CHECK POSSIBLE CAUSES TO MISFIRE

Misfire Continuous Memory Diagnostic Trouble Codes (DTCs):
P0301 - Cyl #1, Inj Test Pin 75
P0302 - Cyl #2, Inj Test Pin 101
P0303 - Cyl #3, Inj Test Pin 74
P0304 - Cyl #4, Inj Test Pin 100
P0305 - Cyl #5, Inj Test Pin 73
P0306 - Cyl #6, Inj Test Pin 99
P0307 - Cyl #7, Inj Test Pin 72
P0308 - Cyl #8, Inj Test Pin 98

P0300 - multiple cylinders misfiring, or cannot identify cylinder due to Camshaft Position sensor failure.

Possible causes:
-- Ignition System.
-- Fuel Injectors.
-- Fuel Pressure.
-- Evaporative System.
-- Canister Purge.
-- Base Engine.
-- Running out of fuel.

NOTE:
Running out of fuel may turn on the MIL and possibly store a Continuous Misfire DTC.


Running higher octane fuel than recommended can also cause misfires sometimes.




I'm down to checking wiring b/c I've replaced plugs, wires, coilpack, and entire LIM(for injectors), also ran a compression check today & its fine. From the looks of the plug i'm not getting any fuel, I've got fire, so I saw this and was wondering if anyone could expand on it. In the morning i'm probably going to pull the UIM and start checking every wire to my #4 injector!
Thanks
O'Brian

I don't "mod" I just fix what breaks! 98 CSVT #2527 T-Red (Limping) 98 CSVT #2228 T-Red (Donor) 98 SE Sport ATX V6 (Running again) If swimming is good for your figure, explain whales to me!