89 crx si with 1st gen b16a converted to obd1. All of the electronics in the car cut in and out when driving in gears 1-5, but not in reverse or at idle. The car was running just fine and started one day and this started. I have checked all the grounds, fuses, jumper, and tried swaping out ecus..... anyone have any ideas?

 

you might check for a gash in the wire looms....maybe down near your feet, or maybe in the rear, where exposed wires would touch metal when you drive forward..........good luck