ok i have a 91 OBD0 crx NOT an si. i bought it as a shell and i have a b18a1 OBD0 complete engine. the question is do i have to do anyting to the wiring? if so is there a diagram? ohh and can i use the b18a1 ecu and engine harness?

 

Wiring is going to be your biggest issue. You WILL need, either an SI or HF crx harness or the harness out of the same gen Integra as the motor plus an injector resistor box, OR, you will need to rewire your existing DX harness from DPFI to MPFI

 

is it dx or hf... with my hf it was obdo and dropped in an obdo b18 and just used a hf harness.. all i had to do was extend a few plugs.

 

i dont know what model the car is but its not an si. so your saying i cant use the 90 integra engine harness on a 91 crx? because i dont have any other engine harness.