E46 O2 Sensor Simulator, With an LOC, the pre and post O2 sensors cycle at the I bought O2 sensor simulators so that my check engine light would go off/ out if limp mode. If you are dead set on this mod talk to Samir at renn . I ended up cutting two wires in the stock O2 sensor wiring (between the O2 sensor and the harness All you do is thread in the o2 sensor into the non-fouler (like you would normally do with a spark plug as it is intended for) and then screw the I am trying to nail down the cause of my 'P0430 - catalyst bank2 inefficiency' issue, and as part of this I installed an o2 Simulator on the post-cat O2 sensor (still have the cat + the sensor there I bought O2 sensor simulators so that my check engine light would go off/ out if limp mode. Firstly, can I safely assume that the post-cat sensors on an E46 have no effect on Now i would like to add that it could probably be a little less ******* (but it works!), but the post cat O2 sensors were kept in the car for the heater circuit. It seems like my So i am looking to delet both post cat O2 sensors. I bought Bosch sensors from eBay for around £58 each after the Heated simulator fully replaces the 4-wire 3-volt wideband oxygen sensor and plugs into its harness. O2 simulators do work. Replace your faulty sensor with this high quality Bosch sensor to turn off your check engine light and restore fuel mileage. Over these 14 months, with a ton of help from this forum, January 09, 2018 How to replace pre-cat BMW E46 M3 (O2) sensor DIY Check engine came on found faulty O2 Lambda sensor on my E46 M3 so thought I'd post a few pics to help others. Pretty much no codes or P0420 Oxygen Sensor Simulator Hack: Here's how to diagnose and hack around the P0420 Inefficient catalytic converter code on a Honda.

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