Your Pontiac will not fail the smog test if the odometer is not working. You
must make sure however that the problem causing the odometer to malfunction
is also not causing any emission system electrical problems. A good
indication that the odometer is causing emission problems is the "Check
Engine Light" being illuminated. If no check engine light is on, and the
only problem is a failed odometer, you should not have a problem getting a
smog test, the smog technician will enter "none" for the mileage question on the smog machine.
posted by SmogTips Support