Well as the title said I just swapped in a b18b from a donor 97’ integra. Used my original civic harness as the donor integra already had an obd1 dizzy and alternator. Only thing that was changed was using a jumper cable for the fuel injectors which were obd2, as of right now I have a p75-a01 (94-95 teg obd1) ecu hooked up straight to the harness. All of my important harnesses are hooked up correctly I believe.
It is rather messy right now as I just wanted to make sure the motor runs as it should, so not everything is in place. Though everything that should allow the motor to run briefly is in place. Though when I attempt to start the car i’m met with a single click and the starter not engaging.
First thing I did was jump the battery in case it didn’t have enough juice, but that didn’t do it. It may be ground related but not sure how, the thermostat is grounded, and the transmission is grounded. I am missing a ground from the valve cover to the rad support, as the bolt head snapped off, though my donor integra ran just fine without this ground. Both cars have ran fine within the last month or so. So not sure why the starter isn’t engaging.


Overview pic of my engine bay


Picture of my starter, does the orientation of the plug matter?


Picture from the underside of what I have unplugged, o2 sensor, reverse light, and speed sensor(?) not sure about that one.



also have this unplugged which i believe is the air intake temp sensor


So as you can see I have quite a few things unplugged, but none of these should be the reason for why the starter isn’t engaging. If it matters I also know for a fact the car is getting fuel. Not really sure where to go from here, hoping it’s an easy fix because I didn’t expect this. All advice appreciated, thanks

 

I can't see it in your second pic, but do you have 12v running between your positive battery post to the bolt/nut behind the starter signal wire that has tape on it ?

 

Sounds like a ground issue. I moved the ground that was on my valve cover once to a different location and my car would not start, the starter wouldn't even engage until I moved the ground back.

 

You can still ground the driver side ground to the block. It doesn’t need to be on the valve cover