The check engine light came on in my truck for multiple misfires so i replaced the plugs wires cap rotor ignition coil an reset the computer an the light came on again with the same code i was wandering if anyone knows what would cause the multi misfires so i can fix my truck

 

Check your plenum.

 

Look in the FAQ/DIY section for the proper wire routing and go from there

 

No its not the wires or wiring but heyyou you think the plenum is causin that

 

Comp test as well.

 

How do you know its not the wires? Were the routed like the TSB has them?

 

Automatically discounting a known issue such as routing of plug wires reduces the liklihood of finding the problem. The plug wire routing, the plenum, as well as inadequate compression are commonly known symptoms of misfire.

Do you know which cylinders are misfiring?

 

It comes up cylinder 1 misfire cylinder 3 misfire then get a code that says multi cyclinder misfire

 

Plenum shot, cat and o2's are also done. And here is the TSB for wire routing. I doubt it's the main prob though. http://dodgeram.info/tsb/1998/18-48-98/18-48-98-v8.htm

 

Well i do wanna take the keg off an put an edlebroc intake on that they make for the 5.2 an 5.9 but i didnt think that have to do with my misfires an the cat had been replaced at bout 100,000 miles an i got 126 on it now but i wanna kno how to do either a true dual or a better setup an gonna take the cat off but i need to get my truck inspected an i just cant figure out my misfire issue but seems everyone sayin the plenum guess i gotta start there anything else i should do to it to get more performance outa my truck too cuz i wanna do it all at once