Good morning all, I have just tried about everthing in the book about fixing my 5.7 Vortex. I've installed the following parts; plugs, wires, cap, button, all 4 (O2) sensors, EGR valve, new spyder injector system. The only thing i haven't changed is the catalytic converters.

It has 192,000 miles on the truck with the original motor and internal parts. The truck pulls hard off the start, runs smooth under normal driving conditions, and any conditions for that matter.

The issue I'm still having is that when I come to a stop it feels like I have a slight miss in the ignition somewhere. Also if I set and let the motor idol for about 1 to 2 minutes and not moving such as at a red light or slow moving traffic it throws a code P0304.
Gas mileage does not really seem to be affected and when I changed out the injectors i did not notice any wet fuel anywhere in the plenum.

If anyone can tell me what I'm missing I would greatly appreciate it the truck is awesome but this brain buster is starting to get old fast.

Thanks in advance.

 

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