RomRaider

Can i remove the rear o2 sensor of my wrx? to be install my LC-1

What year WRX? 32 bit ecu cars need a rear O2 signal.

The LC-1 can generate a narrow band output which you can hook up to the ecu if you have a 32 bit.

ECU year is MY03

So i can move the rear o2 sensor?

I know that other people with 16 bit ecu cars have already removed theirs. You will need to deactivate some DTC.

Is there any chance of an unknown function of the rear o2? How much of delay will there be opposed to 18" off the turbo!?

I have removed the 02 sensor and the code where (P0037 rear O2 sensor low input)

On the 32 bit ecu you can remove the rear 02 sensor. But!!!!! your afr's will go down to 13.7 at idle and light cruise for a few seconds before they return to 14.7. I have done alot of test on just this and those are the only ill effects that I have seen. The afr's will run a little richer for a short moment. As for driving. I could not find any negative effects on drivability.