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oxygen sensor bench test advice 850 1994

posted by  someone claiming to be chuck on  Sat Dec 7 16:49 CST 2002 [RELATED]

Just removed my o2 sensor today and bench tested it. Need some advice on the results. When applying heat with the propane torch to the tip (red hot) I get a maximum of .8 volts from the sensor. When I remove the torch the voltage drops to .1 volts in about 8 seconds. Too slow ? re applying the torch the voltage goes to a maximum of .8 volts again in 8 seconds. Too slow ? the faults I was getting on A2 socket were 435 and 436 (slow response).

Tried cleaning the sensor but didn't seem to make a difference. The car still idles rough and sometimes seems to be hunting for correct idle speed.

I need advice before paying big bucks for new sensor.

Thanks






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