quickWS6

I drove around last night trying to tune the car. My car backfires a lot, it got worse over the course of the night. My Ltrims for B1 were all about right, -4 to 0. My Ltrims on B2 were way off, 20-25 and when it backfired, up to 50. I changed the 02 sensors, and I still got backfiring, I haven't been able to log anymore, but any ideas?

benelliwang

Could be intake air leak, check the torque spec on your manifold. Also, check the plugs.

quickWS6

I'll check the manifold. I'll probably replace the plugs too to make sure they are okay.