ok so heres my problem, i did a b20b swap into my 89' hatch, everything went in ok and lined up, it just that i cant seem to find out which engine harness i am supposed to use. please help!!!!!!!!!!! search button didnt do it for me.

 

You just want to use an MPFI harness from a CRX. If you are going VTEC, you'll either need to add wires to the factory plugs or get a conversion harness with them in it. If you get a conversion harness, you may as well just go ahead and do OBD1 while you are at it... boomslang makes some very nice conversion harnesses, too.

 

i thought the MPFI crx's only use the two fuel injector system, or is that just the PFI D15 . what year crx is that wire harness used in? thatnks for all the help

 

CRX Si harness is MPFI. The other one is called dual port; you can modify that harness to work by adding some wires. I just would go with an Si/HF harness as they already have the stuff and they tend to make for a cleaner install.

Ryan