My Jeep failed the smog test TWICE!
Both times, it failed the 15 mph test - 688 on 8/31 - 644 on 9/4 - maximum allowed is 512. My next step will be to have the exhaust manifold checked, and go over the engine and maybe the Cat.
My K&N/AEM Intake/Filter combo has a CARB # and is clean.
I changed the oil on 9/1 (Full Synthetic w/K&N oil filter).
I used 'EMISSIONS PASS' as prescribed with Chevron gas.
Rear tires aired up to 35 p.s.i. (33" w/4.10 gears).
I hope this gets resolved before I end up driving around on expired tags.