Seasons Greetings

 Matt,

 I was doing my annual note organizing and I came across the files on
 the Nissan data. On the Excel table I have a notation the data is in
 mg/sec.

 On the Nissan Infinite g20 graph the bottom line represents voltage and
 the numbers should read from left to right as follows.   0.1 , 0.5,
  0.9,
 1.3, 1.7, 2.1, 2.5, 2.9, 3.3, 4.1, 4.5, 4.9, 5.3, 5.7, 6.1. Please
 correct Paul's graph as it appears the numbers are off.

 Again after 4.8v the sensor doesn't have any real resolution but
 those airflows are so low it doesn't matter.

 Let me know if you need anything else.

 Presently I have the sensor mounted down stream from the ROTREX Super
 charger and will bring the feed into a simple flow bench that  can match
 the throttle and or the rotor housings, intercooler etc.

 Cheers

 Doug


Are you sure the voltages read are correct? My experience is that more
volts gives more fuel. If the airflow is greater, the engine would require
more fuel, so the voltage to the ECM should be higher. If the sensed volts
is taken across the wrong wires the scale would be backwards.

Dale Davies

Here is how the RX8 mass air flow sensor works.

Paul Lamar