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E21, E30General discussion and technical help for 1975-1991 3 series cars.
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.
08-23-2006, 09:01 PM
I keep forgetting that - I have a great memory but it doesn't last long
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