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BH Legacy - 3.0 CEL (O2 sensor?)


boon

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A friend recently bought an '03 wagon with the 3.0 single exhaust port motor.

 

It had an intermittent CEL, would go away when the car got warm, seller had a scan tool of some description and said it was one of the exhaust oxygen sensors, symptoms and how it drove agreed.

 

CEL is now staying on all the time; guessing the sensor has finally got too sad. Going to replace it with a sensor from Pickapart but obviously these things have 2 (or 3?) O2 sensors; the front pre-cat and rear post cat.

 

How can I pull the codes on this thing to find out which sensor it is? I got him to connect the black diag connectors (assuming that's a thing on this era car??) and he apparently got 11 long 11 short CEL flashes, which doesn't sound like a valid code to me?

 

I have a vag-com cable and FreeSSM which talks to my '05 Legacy just fine, will it talk to his car to retrieve stored codes? Otherwise how do we do the diagnostic read from the CEL properly?

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49 minutes ago, boon said:

I have a vag-com cable and FreeSSM which talks to my '05 Legacy just fine, will it talk to his car to retrieve stored codes? Otherwise how do we do the diagnostic read from the CEL properly?



Should do. I've had varying success talking with BH era models using FreeSSM, better results with '01 onwards models

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