Radom Misfire

[Pedraza202]

okay guys i need help bad now. i changed my fuel pump and did a scan now and its code 300 (random misfire). am like what the hell could that be. I first thought the fuel pressure regulator so i changed it and it was all black and full of carbon. the regulator is inside the intake so i cleaned it and turned it on and still code 300. Then i changed the distrubator cap and rotor and still code 300. I put a new fuel filter too. My truck sounds like its clogged but the power is there but like if something is holding it back. i put new plugs and wires, coil about no more than 15,000 miles ago. My truck has 137,000 miles just to let you know. My truck never did this problem before. Can you guys please help me out. Thanks

[LowSDime97]

i actually was in the same situation u are in before, but mine turned out to be the cap and rotor, i would have never thought it would have been since it was replaced like 6 months before it started acting up, but i see u already changed ur cap and rotor...hmmm...possible fuel injection problem? clogged poppets? and u did changed ur igniton coil right? did u take a look at all ur plugs and wires just in case a wire was arching or fouled plugs?

[Pedraza202]

okay i looked at my plugs they look wasted so am going to swtich them out right now. I hope thats the problem. anymore ideas would help.

[Pedraza202]

okay i changed the plugs and gaped them and still random misfire what could it be any ideas would help?