Help to diagnose engine problem?
Help to diagnose engine problem? I finished my heads and cam swap last weekend and it has run great all week then today im idling at traffic light and it starts to backfire it did it twice while i was waiting on light to change. Then when i push on the gas to go it starts to run slugish like it will be at normal power then dip and bog down briefly then back to normal power again. And when im idling the backfiring continues. Same thing all the way home almost like a plug is bad but i put all brand new plugs when i did heads swap as well as brand new ls2 plug wires. When i put my headers in i put in bosch 13111 rear corvette o2 sensors in. Im going to take a look in the morning and check plugs, wires and o2 sensors. What else could it be? thanks
Thanks anyway i found it. It was a plug wire that was resting on the header primary and it burnt half of the wire up. Replaced wire and it runs like a champ again. thanks
