Emissions Problem on my 2003 Miata
Posted: Wed Jun 27, 2012 6:11 pm
I am having great difficulty getting my 2003 Miata through New York State emmissions inspection. The on-board intermittent monitors for the egr, catalyst, evap system, oxy sensor ( and a couple more that I can't remember) simply will not set. In NYS, a 2003 car can have no more than two unset monitors.
When the car was new, I replaced the exhaust with a racing beat header and installed a stainless exhaust. I also have a monster flow intake. But the car has passed inspection until two years ago with that after market equipment on.
The car runs great and there are no codes found in OBD II. No check engine light. I took the car to the Mazda dealer and they had it for a week, but found nothing wrong to explain my problem. I replaced the thermostat and the engine temp sensor.
Has anyone else had this problem? Any ideas?
Thank You for reading this, Steve
When the car was new, I replaced the exhaust with a racing beat header and installed a stainless exhaust. I also have a monster flow intake. But the car has passed inspection until two years ago with that after market equipment on.
The car runs great and there are no codes found in OBD II. No check engine light. I took the car to the Mazda dealer and they had it for a week, but found nothing wrong to explain my problem. I replaced the thermostat and the engine temp sensor.
Has anyone else had this problem? Any ideas?
Thank You for reading this, Steve