Currently working with a b18c1 swapped del sol .
Need help with suggestions on hunting down the phantom single click
So far the battery, cables,starter , and main relay are all new and tested . And current grounds have all been cleaned .
I have power to accessories and lights dont dim when starting , fuel pump primes . Fuses all appear to work and arent blown or corroded. I have also inspected the clutch safety switches for the plastic button but not electrical failure .Engine wont crank .

Currently testing with a multimeter . And suggestions or experience is helpful

Im about to start using a multimeter to check around the bay . Perhaps bad ignition ? Or faulty ground . I have ruled out compression as the engine ran strong before it was parked for a few months
Hellp.

 

I am curios if the you can roll start it? I to have suffered from several ignition related problems (d15). The most recent is similar to yours. I can roll start and run. Let me know.

In the mean time - Check the start cut relay located left of the clutch pedal forward of the PGM-F1 relay. A and B terminals should be open until you energize C and D terminals with 12VDC. C and D should show continuity.
Check the clutch interlock switch. If that all checks out - disconnect the primary coil lead (2-p) and remove the blk/wht from the starter solenoid and jumper from the battery + to the solenoid terminal (not in gear). If the starter runs, check the wire for breaks. I didn't mention the checking the ignition switch but there are two connectors under the dash and the switch can be check with a continuity tester.