Engine Performance problem
2003 Mazda MPV 6 cyl Two Wheel Drive Automatic 66000 miles
Last week our check engine light came on. Today we took it to a dealer and he hooked it up and told us we had a trouble code P0037, and O2 sensor, bank 1 sensor 2. He went ahead and reset the code, told us to come back if it lit back up, in case it was just a fluke.
He quoted us around $370 if it needs to be replaced.
The light came back on within half an hour. I didn't take it back, I wanted to do some research first. I called autozone and they said it was possibly my catalytic converter, but when I read up on that it talks about obvious loss of power and a rotten egg, sulphur- like smell. I really hope this isn't the case.
I have noticed absolutely NO change in the cars performance, although when the light is on I could smell the emissions from the exhaust. When he reset the code, I didn't notice the smell until the light came back on again. It isn't strong or overpowering, and I really only notice it when I'm idling with a window down. It doesn't smell like sulphur at all.
What I'd like to know is if it is likely that it is the sensor, or is the sensor simply doing it's job and indicating a problem elsewhere? If it isn't the sensor where should we look? If it IS the sensor, how would we go about replacing that ourselves (if it is even possible)?
have the same problem?
Friday, November 6th, 2009 AT 5:08 PM