Hi all,

Anyone recommend oe quality and fitment (no changing plugs type) of rear 02 sensor for new age 2002 model impreza? It's suspected my rear sensor is faulty so had a look on GGR and they're £177 odd notes

 

This was the cheapest place I could find Subaru Impreza WRX 01 to 05 Rear Lambda Oxygen Sensor 22690AA520 But double check it is the correct part for your car.

 

I've got a couple of spare OEM ones in working order. £35 each.

Nick

 

Yup that's the correct part number.

Phil

 

Thanks all for this, not cheap is it.

Butty, what's history of sensors? Been used much? Very interested but first need to confirm something with my mapper as I'm still not convinced its my rear O2 sensor at fault causing the simtek to add fuel and run rich.

Passed MOT with oe ecu in and turned down FPR by .2 bar...

 

Both were taken from PPP exhausts 3 years ago. No idea what the mileage was on either.

 

Okay, do you take paypal? PM me your details and I'll have one.

 

OK

 

The rear O2 sensor has absolutely nothing to do with fueling, it's only mission in life is to check weather your Catalysts are working correctly & the car is running as "green" as it should be.

It's the front (pre cat) sensor that trims the fueling requirements.

Phil