Can anyone shed some light on what values I should be getting on Datascan for Throttle, AAC, Water Temp and AF Base when the car has warmed up and is idling.
I have an R33 S2 GTS-T with a standard Nissan ECU and am struggling with setting the base idle and base timing. Can't seem to get the idle down to 650rpm in Base Idle Adjustment mode. Currently it sits around 800rpm with the idle adjust screw all the way in and jumps to 900rpm when I hit the Base Idle Adjust button but isn't really steady in either case.
I set the timing to 15deg using a timing light off the number 1 spark plug with the Base Idle Adjust turned on but as soon as I turn the Base Idle Adjust off it drops back to 800rpm and the timing retards to 0deg.