I am having trouble matching an O2 sensor. The sensor is a 4 wire sensor with a rectangular OEM plug. All the auto parts stores are indicating a 3 wire sensor with a triangular plug as the proper match. This vehicle was made before October 2000 but is a 2001 model. The 2002 O2 sensor is a 4 wire unit and as best as I can determine from the Bosch pictures it has a rectangular plug. Does anyone know if this sensor was also used on 2001 models?

Your car should have two sensors. It sounds like you are trying to replace the front sensor? Make sure they aren't calling up a rear sensors. Also, both my 95 and 96 Legacys have 4 wire square plug sensors.

 

Also, you may want to follow my new thread HERE about generic sensors.

 

Thanks,

Keith

Thanks for the reply. This is definately the rear sensor. My front sensor has 5 wires and has a huge square connector (about 2 cm x 2cm x 6 cm).

Your car should have two sensors. It sounds like you are trying to replace the front sensor? Make sure they aren't calling up a rear sensors. Also, both my 95 and 96 Legacys have 4 wire square plug sensors.

 

Also, you may want to follow my new thread HERE about generic sensors.

 

Thanks,

Keith

My 2001 Forester built in 07/2000 O2 sensor is the same as a 2002 model year. I purchased one from the dealership ( Subaru part 22690AA640) and it is the same as a Bosch #15336 available at most local auto parts stores at much less than the $160 I paid. The problem was that all the auto parts stores are showing a different part for the 2000 and 2001 Subaru Forester that has only 3 wires and a triangular plug. The correct sensor has 4 wires and a rectangular plug.