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Oxygen sensor testing 88 240 200

Car has 195k miles on it 5 speed with Original bosch sensor. Just passed NJ emissions test 2nd toughest after Cali. Car runs great 23-25 mpg around town which is all it gets lately. Highway was (28-30) 16 inch tires. Tested sensor when just warming up and watched it rise from .2 volts to .88 volts in a few minutes and thats pretty much where it stayed. Tested again after good and hot and it was at .9 and never came down again both tests are at idle and with no vaccum leaks created. Used a beckman multimeter diconnected signal wire and reading from the sensor. I thought they were supposed to settle back into the .5 volt area. Again both tests were at idle only and the car is running great. So what am I missing?






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New Oxygen sensor testing 88 240 [200]
posted by  joekidd  on Thu Nov 6 12:48 CST 2014 >


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