I have a 1991 Protege DX SOHC 1.8 with no spark. I have replaced the ignition module, ignition coil, distributor, cap and rotor. Still no spark. Could this be the PCM or Main Relay? What other tests can I perform on this system to troubleshoot a no spark condition? I currently get about 10 volts out of the coil when in a start condition. Is that enough voltage? Does someone have a wiring schematic of this sytstem in detail other than the Chilton book which is not in great detail.

 

Do you get a blinking check engine light?

 

No blinking check engine light.
I think I have it solved. Disconnected the Mass Air FLow Sensor and the engine fired up. I am replacing this part and will re-post if this was the problem.