Darrell: It seems to me your basic mixture is set too rich; you should be observing the fluctuation around .5 volts with a hot, disconnected O2 sensor.
On Sat, 27 Jun 1998, Darrell Boehler wrote: > [snip] > After 1 minute the voltage climbs to to 0.9 volts and stays there. > The oxygen sensor is getting a pretty rich reading in default mode, my van > seems to run ok in this mode but mileage would not as good as normal. > With the van still running if I plug the oxygen sensor connector back > together the voltage reading will stay at the 0.9 volt level for 30 seconds > . Then the digifant has discerned the oxygen sensor is working and has is > detecting a rich mixture and by 35 seconds my digifant has the oxygen > sensor voltage readings bouncing above and below the 0.5 volt range. 0.5 > volts reading indicates a perfect mixture. The bouncing of the oxygen > sensor voltage above and below 0.5 volts is the way all ECU's seem to > operate. --------------------------------------------------------------------- Tom Young young@sherlock.SIMS.Berkeley.EDU Lafayette, CA 94549 '81 Vanagon --------------------------------------------------------------------- |
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