hi,
I just finished swapping my sohc 4g63 for a dohc 4g63 from a 1990 including loom and ecu however my tach doesnt show the revs and i'm unsure as to whether or not the ecu is reading the revs either as their is no change in idle speed when cold. Does anyone know how to remedy this. both of the ignitor plugs are attached but there is another plug from the loom that appears to have no connector on the motor
