Ignitron ECU fault codes

Good evening everyone. Recently put an ignitron ECU on my 1991 cabby 1.8t swap. Was running great. Tidied the loom up a little and since doing this the car is running terribly. I've got these codes coming up and wondered if anyone could help/point me in the right direction! Thanks in advance! 

Check your engine to frame and Frame to battery grounds for voltage drop and replace if over .5V.

I would also suspect the ECU ground, and from the Valve cover rear right hand corner as you look at it to the firewall coil bracket bolt.

The EVAP canister may need a rebuild or is insufficient for the newer engine, but do the grounds test first.
 

Briano1234 said

Check your engine to frame and Frame to battery grounds for voltage drop and replace if over .5V.

I would also suspect the ECU ground, and from the Valve cover rear right hand corner as you look at it to the firewall coil bracket bolt.

The EVAP canister may need a rebuild or is insufficient for the newer engine, but do the grounds test first.
 

Ok awesome! Thanks for the help.. I'll report back!!!