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So, ran great since the last posting and, out of the blue, same problem as before. Misfire on cylinder 4 and injector 4 circuit failure. Going to work I. The day and school at night. Have to rip the top off again to figure this shit box out. Wish me luck.

Did the switching of injectors and coils. Even put the old ECU back in it and a different set of issues came up. But that's why I put the new ECU in. Ran Seafoam through the tank, crank case and even ran some through the intake. It never smoked like you see on YouTube. Still has a slight misfire...

Still nothing. I did have an Injector that was stuck open. Replaced it and re wired the coil pigtail, had it backwards. Ran great for 5 whole miles. Almost left me on the highway heading to work. Same problem as before. Won't rev over 2000 RPM at any speed. Ran codes, injector 4 circuit and...

I'm possibly going to gut the 06 and build the 04 skeleton that I have I. The back yard. The 06 and from WV and is riddled with rust. The 04 skeleton that I have is virtually rust free.

I used OEM copper plugs that were pre gapped for the 06 3.7l.

OEM copper plugs, pre gapped for the 06 3.7l. My neighbor (former Ford mechanic) thinks that I have a bad head gasket from all of the unburnt fuel coming out of the exhaust. I'm going to pull all of the injectors tomorrow and check them for action. May be stuck open as well.

I ran the codes again and now only get one. P0300 random misfires. I also have unburnt fuel coming out of the exhaust and white fuel smelling smoke. Put another fuel pump assembly in the tank this morning and still the same thing. I'm at a loss.

I will run my codes again today and post them. The rain was a downpour and I don't have a garage. It's all driveway work at my place.

It is getting fuel to the rail ( most coming out of the exhaust now), no idea about the pressure yet, started raining on me.

New guy here with Issues. 2006 Liberty 4*4 with 218K, auto. New trans, ECU, coils, plugs, cam sensor, crank sensor, tps and motor still runs like crap. Codes are for multiple random misfires, undefined fuel ratio and fuel system too rich. What could be causing this? Any help is greatly...