How do i flash codes on my 97 prelude. has jumper harness to convert to obd1. Im using a p28 chipped ecu. the check engine light came on and my scanner isnt picking it up the code. Need help my car has a misfire and is running like Crap!

 

scanner wont read an obd1 converted ecu... You need to ground the service wire to ground need to look at a wire diagram and find the wire but I think its D4 but I could be wrong on the location

 

Fund it. its a BLUE 2 wire plug you need to jump its behind the 0bd2 scanner plug. Its hidden but its there.

I got code 3, code 7, and code 14

 

ok so i switched ecus to my old one and then back to the one i just bought and no MIL. what the f*(&%!
super weird ima see if the codes come back up.