Quote:
Originally Posted by johnlvs2run
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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Because the ultragauge is dependent on the sensors and there is no FE sensor. So therefore the 999.99 mpg number is a UG calculated guess. The sensor is directly reading the exhaust and reporting out voltage according to what it finds. Given how many times the engine turns in a second at 1500 or 2000 rpms, I can't imagine residual fuel would last more than 1 or 2 seconds. But this can go on continually over 10 seconds, and not at 0.015, but at numbers like 0.6 and such. There's no way that at a 0.6 O2 voltage reading from the sensor the FE could actually be 999.99 mpg, is there? What do you think?