I have a 1997 Dodge 2500 with the 360 with the nv4500 regular cab long bed when the motor is cold it runs fine but when warm at idle it misfires and sometimes dies when it's miss firing if I tap the gas pedal in misfires and sometimes dies I changed cap rotor plug wires and spark plugs about 600 miles ago I have no idea what's wrong with this thing can someone please help

 

Unplug the front O2 sensor. It's screws right into the catalytic converter. See if the problem goes away. If it does, replace the sensor.

Welcome to DF!

 

I tried that I changed the tps sensor and I found some bad plug wires and changed them

 

any of it help?