02 sensor

[zhaktronz]

Does anyone know what O2 sensors can be run as an alternative to the expensive OEM sensor?

 

[4gbanger]

not quite sure.. check how many wire/pin in the socket.. get it compared with evo's

 

[weiye]

If you are referring to the O2 sensor just before the cat converter, i.e. the narrowband one, you could try getting this "MAGNUM BOSCH Oxygen Sensor Universal Wiring Vehicle Specific #703". Bought this from amazon and i'm using it right now on my airtrek. So far didn't meet any issues, just need to cut off the original O2 sensor wiring and use the kit provided to modify the wiring a little. It is a very simple job with a manual to guide the colours of the wires to join.

http://www.magnumtuning.com/en/detail/bosch-oxygen-sensor-universal-wiring-vehicle-specific/mitsubishi/airtrek

 

[vr2turbo]

The one before and after is different? In my Chery the O2 sensors before and after the cat are the same...

 

[weiye]

In airtrek we have only 1 just before the cat converter. We can fix another o2 sensor on the turbo elbow outlet just after the exhaust manifold but that o2 sensor is usually a wideband sensor used for tuning or an AFR gauge. The 1 just before the cat converter is a narrowband o2 sensor used by the ecu to adjust the AFR of the car automatically, of course that's if your tuner did not bypass it when tuning your car.