i have a 94 si and am planning on doing a obd2 gsr swap.i plan on getting a jumper harness but i am wondering if there is any extra wiring required for the jumper to work?

 

just keep it obd1...something about adding more things onto to get it to run obd2...more of a hassle i think...so just get that, sell the obd2 ecu, and buy an obd1 ecu to run the gsr...gl

 

yeah keep it obd1, you'll just have to swap some plugs from the Si to the GSR's distributor and reuse your Si injectors. You'll have to run knock sensor and IAB wiring and swap the plug of your alternator onto the GSR's

 

reuse my injectors?or the clips?