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wrxdan 09-19-2013 11:07 PM

front o2 sensor help
Had my front o2 sensor go out on my 04 wrx. was wondering if anyone knows if a front o2 sensor from 04-07 sti is the same.

Thanx all

brfatal 09-20-2013 07:03 AM

Different part numbers, but it might still work. Call a shop.

wrxdan 09-20-2013 08:16 AM

any idea on who mite know for sure...i called my local shops, but none of them had any idea (i live in small town in south dakota).....closest subie dealer (like 200 miles away) told me they have different part #'s, that's all they would say

brfatal 09-20-2013 12:58 PM

Just call any well known Subaru performance shop until one can give you an answer.

nmlittlebigman 09-20-2013 01:01 PM

This references that it will work: [url=]Genuine Subaru Oxygen O2 Sensor 03 07 WRX 04 07 STI 04 08 Forerster XT M T | eBay[/url]

wrxdan 09-20-2013 03:59 PM

thanx guys!!

nmlittlebigman 09-20-2013 09:30 PM

Just realized the sensor in my previous post is rear o2 sensor NOT the front. You need this:
[url=]Subaru 22641AA042 Denso OEM Front 02 Sensor (WRX/STI 02-05) - Electrical components & Sensors - Engine & Accessories - WRX & STI 01-07 - Subaru - Top End Power[/url]

And yes the 04 STi and 03 WRX cross referenced the same.

Claythrow 12-20-2013 06:17 AM

Are you talking the EGT sensor in the up pipe?

The other sensors you need to use the (for your year) stock OEM Denso units, which are like $189 each. Any other sensor will throw a code. I was told that by a very smart man, & I spent several trips to the car shop, only to prove him right. It sucks, but has to be the oem Denso which are twice the cost of "generics."

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