hi everyone i am doing an engine swap on my 1998 ej9 1.4. i have a b16a2 obd1 engine with a few bits already such as obd2 engine loom driveshafts and obd2 ecu from an ek4. i was wondering if i would need to change the existing obd1 engine loom with the obd2 or is it easier to just use a jumper...