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Maxwedge is correct, throwing parts at your vehicle is not going to be a cost effective way to repair your vehicle (although it seems to be the norm around here)
I laugh at the people who spend hundreds of dollars to throw parts at the problem instead of spending 80-100 dollars for a professional diagnosis…but hey it’s your money
A random misfire code just tells you there is a misfire, it doesn’t tell you what cylinder or cylinders are misfiring.
First thing is to determine which cylinders are misfiring, then determining what is missing from the AIR,FUEL,SPARK,COMPRESSION equation to cause the misfire.
Proper diagnosis is the key.
A catalytic converter can cause a misfire, but a lack of power on acceleration would also be felt.
Personally, (after some basic quick checks) I would start with the fuel system on this truck and work from there.
Fuel pressure and injector balance will determine the condition of the fuel system and a quick visual inspection of the fuel in the rail will tell you a lot.
No need to replace a fuel pump if it is good and holds pressure (I have many customers with 3-400K miles on their vehicles with the original pump still in them).
Simple things like a dirty throttle body can cause a hard start and rough idle concern, what about a leaking FPR?
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