Calling on 986 Forum Master Mechanics

[Jager]

Originally Posted by coolbreeze551

Please excuse my ignorance but how do you know it's the cat and not the o2 sensor itself? TIA

Yeah, I'm not done playing with this... I will probably swap the O2 sensors to see what happens.

BTW the Jägermobile just passed the California Smog Test this afternoon. The hydrocarbon (PPM) was 5 (max allowed is 100 idle, 130 at high RPM) (average for passing vehicle is 17) and the carbon monoxide was 0.00% on both measurements. The %CO2 measured was 14.06 and %O2 measured was 0.5. The Jägermobile is still a clean running machine.