I looked on the ross-tech wiki, found P0420 (16804)- cat threshold exceeded type thing, figured that is the test pipe screwing with things.
Could not find the other P1114 (17522) - bank 1 sensor; internal resistance exceeded or something similar. Is thisrelated to the O2 sensors in the test pipe? Or is this an entirely different situation?
I realigned the throttle earlier today for grins (CEL was already on, has been for a bit).
Thanks in advance if anyone has dealt with this code before.

 

Do the diode mod, the non foulers are a waste of time. You can search it on i think audizine.com an auditech posted it and i did it on mine after getting my cel a few times and it only cost two bucks.

goog luck with it

 

non fouler mod only worked intermittently for me... had to get the APR cat delete file

ive heard the diode mod works well

 

I use non foulers with my test pipe. For the first 1000 miles Id get a CEL every 300 miles or so. Now, 1600+miles later, I dont. I would give the diode mod a shot, but I have heard unsucessful stories about it too.

 

thanks all. Diode mod gets added to the honey do list for tomorrow.

 

Finally tracked down the diode mod. My knowledge of car mechanics is better suited to older V8's so I may be missing something- how will this mod affect the CEL from the deleted cat? Is one of the codes I mentioned affected by the diode mod and I am not getting the connection?