Quote:
Originally Posted by toc
The voltage is 'at the time of the read'- ODBII is 10400bps.
I'm not sure you'll see the voltage cycle like it should over ODBII.
It continuously goes up to 0.8, and down to 0.2, repeatedly whilst you maintain cruise (i.e. 1800RPM or more, steady throttle, closed loop operation).
At idle, my sensor stays at 0.8 and slows back to 0.2, and cycles slowly (due to volume - idle RPM is low volume).
That'll tell you the O2 sensor is working OK!
The other thing to think of is you'll get a code again if the O2 sensor is useless.
Vacuum style leaks produce O2 sensor codes (air after the AF sensor).
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My O2 sensor Bank 1 1 readings went from .078 to .66 and did cycle repeatedly between those values.
__________________
Darrell
Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
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