Hello all thanks for reading,
I am looking for some experienced opinions/ ideas for my scenario.
I have a 2008 Ford Focus with race headers, full stealth exhaust, and a high flow cat in place for my exhaust system.
For those who are familiar with the 2008-2011 models the stock headers came with two cats… I have replaced that header with a F2 race header (which is a CAT delete), and stock exhaust with the FSWerks stealth exhaust. The high flow cat I have installed sits at the mid point of the vehicle which is about 3ft from where the stock ones once were. I have both O2 sensors installed in their correct locations. (O2 wires are still stock, I had to extend the downstream O2 sensor to reach the new cat location). The CEL is on and the handheld reads:
HCM -> N/A
2AIR -> N/A
P0420CAT efficiency below threshold (Bank 1)
My inspection is due and I need to get everything ready to pass a NYS inspection. So here comes the question; What can I do that would get the O2 sensors to get the proper readings to pass the inspection? Or are there any other solutions out there that I am not seeing? Would a simple non-fouler on the rear O2 sensor work? Can a tune reconfiguring the emissions standards work? Im at a dead end folks and I could use some help. Thanks for reading.