Hi,
Has anyone got any ideas as to where I can get an O2 sensor from for my 2003 STi Type UK Impreza? My engine ecu light keeps coming on and when checked with a ecu reader it says the O2 sensor. Not really sure what or where it is, just the garage has asked me to source one and they will fit it.

Any ideas?

Thanks in advance

Adam

 

I think you will find it is part number 22641AA042 about 300+ from stealers.

Cheapest place that I found is Auto Parts Fast at RockAuto in the States,put part number in the part search.

 

Impreza breakers Norwich , got one last week for £100 delivered

tel: 01508 558880

Very helpful and friendly.

O2 sensor is located in the headers can be a nightmare to remove i had to remove headers ,heat them up with blow torch to remove .

Mark

 

theres 2 in the exhaust sytem an air/fuel ratio one which is the first and the proper 02 one about halfway down the car

 

Iam sure the O2 sensor is in the headers just before the up pipe
make sure you get the correct 4 wire type,
it might be worth posting up in the wanted section, thats how i got mine