Quote Originally Posted by Turtle_au View Post
Ok I follow that.
What about early non-crds that only have MAF sensor and no MAP sensor.
Also that unit uses the low side of ignition coil for rpm sensing.

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You can use the tachometer or the low side of an ignition coil. The rpm for the module is as simple as splicing into the correct wire that goes to the ecu in a zd 30. You dont have to use the rpm either but it gives you only 16 setpoints rather than a nice table when using the rpm.

And there is a map sensor on the earlier di motors.