Hey guys i have a 00 civic with an OBD2a harness stock and I was looking into an OBD2b engine harness I was wondering what all i would have to do to run the OBD2b engine harness. The other thing i wanted to know is what all is different between obd2a and obd2b harnesses. Thanks guys

 

OBD2A and OBD2B Use different plugs on the ecu side.

 

i knew that part thats not the part i needed to know

 

2000 civics don't come "stock" with an OBD2A harness. They are OBD2B. If you get another OBD2B CIVIC harness, it will plug directly in.

 

not an 00 civic hx its obd2a i would know thats what i have stock

 

You need an OBD2B cabin harness to go with it.

 

anything else?

 

if you truly want it all obd2b and working, you'll need the charcoal canister and fuel tank also. (plus floor harness).

 

I don't care about the charcoal canister or tank

 

It should have the fuel tank pressure sensor. Some OBD2A civics had them too, IIRC Y7 equipped cars didn't but Y8 did, not sure about Y5 (HX's)

 

i don't know i have a y5 five though