Well, just trying my luck here. I had the CEL read and it turns out my rear 02 sensor might be fouled.

Here's the codes that was picked up by the reader.

P0137 02 sensor bank 1 sensors
P0302 Cylinder two misfire
P2096 Post catalyst trim too lean

I also got the car dynoed, and it turns out I'm running lean at the beginning. Well, if anyone has one laying around let me know. Thanks goes out to Speed Element and the crew. Thanks Andy for reading my CELs.

 

The rear 02 is the least of your worries, it simply for emissions purposes. Id worry more about the lean areas/misfires

 

hmm, you happen to know how that would be solved? Cause on the dyno it would show I'm running lean til 4.4k or so, and then it richens out. I was told the 02 sensor might cause me to run lean, and not to get it tuned til I replace the 02 sensor. So I have no idea...

 

If it was the 02, its not the rear 02, its the front. The front 02 is what is used to keep you at stoich during cruise/idle. It usually doesnt come into play during WOT runs. Getting the car tuned properly should/will eliminate that lean spike