RPM's on an AFC-II
 

My friend just installed an AFC-II on his DSM and the problem we have is that his rpms are way of, when the car is idling the AFC is showing anywhere between 300-450 rpms, when in reality the car is idling at ~900rpms, when he gives it gas and the car revs to almost 6000 the afc shows only a lil over 3500 rpms, if anyone know what could cause that help me out really trying to get this thing to work right.

make sure the wire is connected to the right rpm wire.
Also, there is a setting you have to put the safc to, in order for it to have proper rpm readings.
Is it on 4 cylinder?
the throttle, is the arrow point to the NE part of the screen?

Set Cylinders to 2. That should fix it!

+1...only on a DSM

Yeah i figured it ouot later that night the cylinder setting has to be set to 2 because the dsm's have 2 coils for the 4 cylinders, thats the explanation i got from a website, thanks guys for helping out..