OBD-II Codes and Smog

[Jeru]

I have a 1998 Toyota Avalon.

After my check engine light came on I got two OBD-II codes. One code was a bad air/fuel ration sensor, the other code was a random misfire in cylinder 2.

After replacing the a/f sensor, disconnecting the battery for about 45 minutes, the check engine light was gone.

Will my car still fail a smog test due to the random misfire code, even though my check engine light has turned off? In other words, is the presence of any OBD-II code mean a smog failure?

Thanks,

Jeru

[Jack Deth]

i know it will fail if the light is on, but i don't know about in memory.
d/c the battery should have erased the codes. the codes in memory will be erased after a certain number of starts, too - so if you have some time before the test the problem will likely take care of itself. if you have a code reader that will clear the codes, do that. if you bought the replacement part at a local store that reads the codes for free, bring the car there and ask them to check/erase the code.
lastly, call your states emission test department and ask them, the regs vary by state.