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umm from the pics it looks like its for the dizzy
if your car is wired for 0bd2 and your engine is obd1 you have to change your harness to obd1 also.
no trust me i have the did the swap in my car if your car is obd2b u need a 99-00 si dizzy which is obd2b, obd2a is 96-98. with the si dizzy all u need to do is plug it in ans start your carthe problem (i think) is its OBD2A to OBD2B and the plug for the dizzy does not match up from the EX one.
someone on honda-tech said
"Yea you have to use the plug from the d16 dizzy on the b18c dizzy. you will end up with extra wires, the obd2a b18c dizzy has a extra wire for the tach reference that you dont need"
so basicly what i've gathered is that i need to take the harness off the d16 dizzy and put it on the b18c dizzy.
sound correct to people?
someone on honda tech said i should just get an SI wiring harness??