I have a 1998 mazda 323 protege in my shed that I want to fix. It currently cranks but won't start. I've looked at the tachometer when cranking the engine and it doesn't move so I though it would be the crankangle sensor. I've had a look, cleaned up it's air gap and tried to test it's wires by back probing. One is ground, and both of the other two have 2.5volts. I would think one should have 5 or 10volts, at least something more substantial that 2.5volts.
I also tested what I think it the cam angle sensor and got 2.5volts on each wire (neither are ground).
Could there be a problem with the ecu.
The car battery was fully charged.