GTR

I am not familar with the Interceptor so I can not comment.

mike1324a

Is it manditory to check through the OBDII port? Can you opt for a true exhaust reading instead?

rkostolni

It depends on the state. Usually, they pick one method or another. In MD and Va the only method for testing cars with OBDII is through the port. It kinda seems stupid to me, because all that really matters is does your car pollute beyond the set limits. So you should be able to opt for a smog check, but you can't.

MazdaManiac

iTrader: (3)

They only sniff pre-OBDII vehicles.

GTR

In California, They measure tail pipe emissions on a dyno and use the OBDII port to check to see if the MIL has been commanded on and if the OBDII monitors are complete.

TeamRX8

iTrader: (25)

Bueller .... anyone?

Umbra

How much driving is necessary to get the car to pass emissions after a reset?

MazdaManiac

iTrader: (3)

It has to be started cold and run for at least 12 minutes or so a total of 4 times.

mike1324a

I think theres some highway miles needed in there too

MazdaManiac

iTrader: (3)

I think you are right. I think the RPMs have to be held over 4k for a minute or two in two of those drive cycles.
The pattern is in the "after repair" procedure in the FSM. I'll look it up later.

GTR

Typical OBD II Drive Cycle consists includes of a cold engine warm up, accelerating to 55 mph 1/2 throttle, cruise 55 mph for 3 minutes, decelerate to 35 mph, accelerating to 55 mph 1/3 throttle, cruise 55 mph for 5 minutes - end of ODBII drive cycle. In a perfect world, all the monitors will be complete but lots of people know it takes a few good trips to get them all complete. Usually you will complete O2 Sensor, O2 Heater, and EGR System. The harder ones are Cataylst and Evap System.

Hope that helped.

MazdaManiac

iTrader: (3)

^^ Excellent. Thanks!