I got a 93 Del Sol swapped with a b16a3. Ran fine for months, all the sudden it wont turn over. Ive search already and it sounds like I have bad grounding somewhere. Heres what I did already. Check signal wire fuse, along with other ones, pulled out the starter, tested it on a different b16 car, starter & fuses are both ok. Every time I try to turn over, I hear clicking, sounds like the relays, but the starter wont turn over the motor. If I push start it, starts without a problem. So its something electrical. There is two wires going to the starter, one seems like its the power and second is a thin plug, could be the ground or signal don't know. Anybody got any ideas?

 

when the 2 wires that go to the starter are power and ignition. Power is big wire. The small plug is ignition. Did you try jumping the battery because if you swap motor and set your battery on the ground then the ground draines your battery so try jumping it. Thats what it sounds to me.

Another is ground but you should only have to ground wires that should be tight. One for tranny and one for motor. Just tighten them to make sure.

 

I had this swap for months and car runs awsome. But all the sudden dosent want to turn over. Ill check the voltage on the battery with a volt meter but I dont think its the battery. Any other ideas? Would you know where are the ground points on the tranny, is it right byu the thermostat, and second engine which would be on the valve cover. Or where else would the ground points be.

 

FIXED IT, disconnected everything from battery, clean all terminals, along with wires. Starter kicked on.