asiansuperstar

I failed my emisson test the other day, and now im desperate to fix the problem. I searched and read that the 02 sensor had to do something with my idle. Does anyone know anywhere i can buy one? i know i can buy one from mazdatrix but I don't want to pay 130ish and I hear that the universal sensors aren't that great. Any reccomendations? Thanks.


Also is it true that a new O2 sensor can IMPROVE your gas mileage?

Sideways7

iTrader: (7)

I've never heard of the o2 sensor effecting idle. It will only help gas milage by a few mpg. It can screw with the emissions, though. I used the bosch replacement from autozone and it worked fine. I think it was less than 50.

Sith_Lord

I got mine at Advanced Auto for 18

asiansuperstar

Does anyplace sell OEM ones?

Chuck

iTrader: (2)

When my O2 sensor was bad, the rich exhaust was turning my rear bumper black. Replaced the O2 sensor with a generic one I bought at Advance Auto, and the problem went away. During all this time, there was never an issue with idle being affected.

SpooledupRacing

I have NTK Oxygen sensors in stock for a 91' n/a cost is 50.00 shipped

u should use a OEM, DENSO or NTK dont use BOSCH or any universal get a direct fit oxy.

I plan to use the NTK or Denso on my 86 n/a

asiansuperstar

Thanks for mentioning about the rear bumper, I was always wondering how could my rear bumper get all this dirt on it SO quick? I'm about to go get one today. Thanks for the help.