so im putting a obd2 gsr into my 1990 crx si. I started with the si harness but it was hacked up, going to be converted to obd1. I wired obd2 alt and dizzy plugs on the si harness, also found some diagrams that helped me with oil pressure sending unit which is yel/red wire. Fan switch, yel/green and Black, and IAT which is red/yellow and green/white. these plugs were cut off the si harness and there are still 3 cut wires i cannot figure out what they go to. I have a shielded/grounded yellow wire (02 sensor maybe), a normal solid yellow wire, and a yel/green wire. the only sensor thats not wired up is the single wire coolant temp guage. If anyone could shed some light it'd be greatly appreciated!

 

Little off subject but i have a BBK intake manifold for a gsr that is BNIB for a gsr i am selling for $200

 

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Pics may help....?

 

I have skunk2 IM ill get picks up tomorrow

 

Yel/green wire could be fan relay wire.
Solid yellow wire could be reverse light switch wire.
Are you sure the "shielded yellow" wire is yellow?o2 sensor wire is white and shielded it might just be discoloured with age.