car is a 90 civic cx with a a6 motor and pm6 ecu i beleive.
driving home from the track shuts down cel on. ecu led it not flashing. no fuel pressure, no power to pump. no spark. main relay is clicking, just replaced it with a extra one i had laying around.
i am thinkin its the ecu.

advice.?

 

Check the alternator solenoid fuse under the dash. Or all of them actually, including under the hood.

 

all fuses have been checked. battery voltage is 12v.

 

ignition switch maybe

 

I hope do you realize it's not always the ignition switch.

(As posted earlier in another no start thread)

Haha.

It's probably just a coincidence