hey guys i got a 89 crx its not a hf or si just a crx im putting my JDM B16A in it. all obd0 i need to no how to wire the mpfi and all that i got the vtec and that wired in i just need the mpfi. its alll on the motor i just dont no what to do with the car side it has that big plug

 

http://www.angelfire.com/d20/hcivic88/dx-siwiring.html

Check the FAQ's this has been covered thousands of times.

 

i dont understand the b16 is out of my 91 crx hf and the motor wireing is all there the plugs for the INJECTORS on the motor side where it plugs in to the car is to small and the car side of the wiring has more wires going into the plug

 

Since the car is a DX no other engine harness will plug into the plugs by the passenger side firewall except for the DX and MAYBE the STD harness (I am not 100% sure on the STD harness connecting). The HF engine harness will not work unless you replaced the entire underdash harness with an HF one because the round plug is different.

The HF engine harness doesn't even directly plug into the SI harness either without swapping a few pins around on the plug you are having troubles with.

 

ok so i need to take the engine plug off the dx motor and cut the one off my motor and wire the dx plug on how you sad before.

 

so i dont use the plug where the dx inj plug in at at all it can just hang there right