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Old 09-03-2014, 08:22 PM   #2 (permalink)
j12piprius
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Quote:
Originally Posted by California98Civic View Post
The FE readings are, of course, a calculation by the UG, while the Primary O2 reading is the voltage coming from a dedicated sensor. The sensor reading would have to be a better indicator of DFCO than the UG calculation.

the UG showed 999.99 instant MPG while the O2 readings was .6 volts, slowly sliding down to 0.135 volts and then 0.015 volts. Very lean... but not "cut off" ...
Why do you feel the sensor reading is a better indicator?

Does the .015 reading indicate fuel passing through, or fuel still left in the line?
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