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-   -   O2 sensor question (http://www.unitedbimmer.com/forums/e21-e30/8826-o2-sensor-question.html)

PhotoGuy30523 08-23-2006 09:01 PM

O2 sensor question
 
how do i check if have a working O2 sensor
'

?

xsperf 08-23-2006 10:07 PM

the only way is when its in the car, the check engine light should be off

c1apton 08-24-2006 03:27 AM

There are voltage tests for o2 sensors but they're year & model specific. You're going to need to get a Bentley manual for your year/model or check w/a tech at BMW for the exact figures.


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