I just swapped in 99 Si B16A2 into my 96 CX hatch. It runs, but I don't have an A plug to go with the engine harness. Are there any quick fixes for this, or am I going to have to just cut the on off my old motor and rig it up? Right now I don't have any speedo, vtec, and I'm throwing codes for the canister purge valve and the gas tank pressure sensor.

 

its probally beacause you have and OBD2b engine in an OBD2a car. What harness are you using?

 

I'm using the harness that came with the 99 B16A2.

 

and your using the b16a2 ECU right?

 

Yeah, I've got everything from the 99 Si in the car, except the stuff that plugs into the A plug

 

hmmm you should try using and EX harness froma 96-98 civic

 

According to my helm manual(which is a POS PDF version that I got on eBay) the 96-98 pinout is the same