RABBITT_Andrew at mv8.orbeng.com.au wrote: > > >>>I'm curious if anybody has a clue as to the upper (frequency > output) limit of the currently used GM mass-airflow sensor.<<< > > does 9600 Hz make any sense? the GM manual I have has the freq listed as 30HZ-150HZ unless that has changed, last 1 I checked was out of an 1982 Firebird and that was right.