hey guys i still been searching forever and found just a little to i want but now let me know what you thinki i got a obd2 head cause it says pf2-2 and i got two grey plugs on my harness dizzy so means i got obd1 now i just need to find a good write up are someone give me a list on all what i need to buy for the gsr swap to work in my 89 civic thanks help plz i been hunting all dam week

 

Every B series swap is the same. Check out this info in the FAQ at the top.

Additionally if you want to convert to obd1, you need a 4 wire o2, obd1 ECU and the jumper and obd0 - obd1 dizzy jumper harnesses

https://honda-tech.com/forums/hybrid-engine-swaps-18/faq-detailed-b-series-swap-into-5th-gen-civic-how-check-out-help-everyone-else-too-131949/

 

i got the obd1 wiring harness is that cool are do i need a obd2

 

If your distributor and ECU is obd1 then you don't have to worry about having obd2 stuff.

A obd1 engine harness will not plug into your obd0 underdash harness so be aware of that because the firewall plugs will not plug into each other. Easiest thing to do is to convert your stock motor harness.