Hi Carl,

Can you please post the city driving cycle process. I have a 1996 C280, It is giving me so much head ach on smog check. I have passed emission & visual, except functional.
on the OBDII Manual Mode Screen, the Catalyst, Oxygen sensor & EGR system are not complete.
so it failed the functional test.

Dealer tells me to drive 100 miles continously to do smog check while its hot.
I dont have 2 hours to drive continously..

Can someone please shed some light on it.

Thank you.