Im sure this has been asked before. I have a 89 crx HF and im installing a
b16a. Now the engine i bought has a wiring harness on it. So do i use the one with the motor or use the Hf stock harness?

 

use your stock harness and add few wires for vtec its simple check the FAQ at the top of the page, or search google

 

ok, i forgot to mention that the swap came out of a 89 crx hf, and i bought the complete swap for $800. motor, trans, ecu, mounts, shift linkage, plus more, so i was thinking that the harness with the motor would already be set up to plug into the hf