i marked the setting off the allen key adjuster to the housing on the maf sensor with a marker pen. i marked mine at 6 oclock as you look from the front of the car. if you screw it all the way in and count the number of turns mine is 3 whole turns and slight turn to 40 past. i set mine at 2% co on my mates mot gas analyzer. anyone wanna post there settings could be a good guide to get your co2 set to some where near. car is 92 8valve
