Picked up a very reasonably priced and brand new o2 sensor. Took 5 minutes to install:
The most important thing I learned was that all the commonly available o2 sensor wrenches will not work on the e30, but vise grips work perfectly. So I have 3 tools to return to Pepboys. I didn’t have access to the special BMW wrench but it’s hardly necessary.
This seems to have made no difference to how my car runs. Even though the old sensor was entirely encrusted in carbon and crud it was working fine or had no bearing on the car’s stalling, bogging and CEL.
Oxygen Sensor, 325i/is/iC/iX (9/87-91) 11-78-1-734-393-M14
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