Much appreciated and props to Mao and the mechanic who installed my new front O2 sensor, definatley reccomened and repeat business!

Thanks no more error code :P

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2005 WRX STI

Cheers for that mate.

Below are some pics of the sensor fitted to the GD STi. Code came up as P0031 which indicated a faulty front AFR Sensor -- 22641AA042.

Pics of part to be installed:



Faulty AFR sensor:


Genuine 22641AA042 AFR sensor installed:

Evolution R now stocks heaps of Genuine Factory Sensors for Subaru and Nissan. We will not sell you a sensor if it doesn't solve your problem or error code.




Recently added to stock -- Skyline R33 and R34 coilpacks:

We are also able to get you sensors for imported JDM vehicles. Below is the
22641-AA941 AFR sensor sent to a client in NSW for his JDM STi.

Thank you P.WRX for your support of our Subaru O2, AFR, Knock Sensors and coilpacks.

A lot of us overlook the importance of the knock sensor, especially when this is used with an aftermarket ecu like an Apexi Power FC where accurate knock readings are required for a good tune.

Regarding their principle of functionality, knock sensors are basically vibration sensors and are suitable for detecting structure-borne acoustic oscillations. These occur as “knock” for instance in a vehicle's engine when uncontrolled ignition takes place, and are converted into electrical signals by the sensor and inputted to the ECU.

Below is a recent Knock Sensor job on a GC8.

Vehicle came in with an Knock Sensor CEL.


Factory Knock sensor is located under the throttle body and intake manifold of the EJ205


After the removal of the knock sensor, you can see the damage on the factory Knock Sensor:


Comparison between the old sensor and the replacement Subaru 22680AA070 Knock Sensor:



Subaru 22680AA070 Knock sensor comes with the proper plug so no cutting of wires is needed:


New Knock Sensor replaced:


Knock Sensor Cel is now gone:

For all stock and pricing, please refer to the first post of this thread.

Cheers.

Hey Mao is that the knock sensor off of my GC8?
Thanks again for all the work no more check engine light

Yup, that's off your car.

Hi there have a 2002 WRX bugeye with a P0031 code
just wanted to know the cost for sensor part only and install for the sensor to correct this, and when would be the soonest i could grab one.

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[SIGPIC][/SIGPIC]

Thank you for your enquiry.

Code P0031 which indicates a faulty front AFR Sensor.
Subaru Part number: 22641AA042.

P.WRX Price $330.
Labour $45.

Edit: In stock -- will take 0.5hr. Anytime during this week. PM me if you want to book it in.

Cheers.