Pre cat lambda sensor

857 Views 3 Replies 2 Participants Last post by C8DHC, Jan 17, 2014

C8DHC

Discussion Starter · Jan 16, 2014

Need one for my 53 2.0XT.

Engine light on, code reader points to pre sensor (can't remember code now?) - tried erasing but comes back on straight away.

I seem to think there was one fitted to the turbo up-pipe on my 2004 impreza wrx (it was removed during an upgrade) - will this fit?

Have tried the one off the 2.5 that I'm breaking but the connector is different

Anyone bought an aftermarket one recently? Recommendations please!

Dan

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fpan

· #2 · Jan 17, 2014

How was your WRX running with the front sensor removed?!

According to this , 22641AA042 is the number you need.

Lambda Sensor LC10171

22641AA042 Car Parts - Ignition Car Parts Ltd

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C8DHC

Discussion Starter · #3 · Jan 17, 2014

Just been out and had a look at the Impreza tonight.

The pre cat sensor is still in place (in the manifold) - it was another sensor that is in the up pipe that was removed + a resistor put in its place - common modification I was told at the time?

Was just hoping it was the right sensor that was spare so I didn't have to spend my £60!

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C8DHC

Discussion Starter · #4 · Jan 17, 2014

Just found this:

SUBARU IMPREZA FORESTER 2.0 WRX TURBO/STI PRE LAMBDA OXYGEN O2 SENSOR 22641AA042 | eBay

Seller has good feedback and offers 12 months warranty - worth a punt?

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