It seems as though tuning this new motor has brought something I'm not sure of. Watching the o2's, it looks like the right side (B2) stops firing the injectors, but the PCM shows that it's firing them.

My question is ... could they be loosing a ground or something and stop firing momentarily??

I'll try and attatc this log screen shot that shows a good example.

http://woracing.com/truck/whats_this.jpg

 

I see a bad o2 or electrical to it, cold or lazy. I may be wrong but as I understand it the PCM reacts to what the o2 sees. I see bank 2 02 go lean, the stft go way high dumping fuel trying to fuel it then the 02 goes way rich then the fuel react to it and then the o2 start cycling. I don't see an injector issue.

 

It feels as though it cuts out at the time the o2 goes flat. It does it too even when the o2's are unplugged. I don't think it's an o2 problem.

 

there is a bulletin about the pass side 02 causing thright bank to not fire. I will try to find it.

 

Interesting ... please do.

 

Found my problem ... it's a loose connection in the plug at the right side coil pack harness. It finally did it while I was sitting in front of the house idling, I popped the hood and jiggled the plug and it straightened out.