I habe 1 problem....my civic is obd2b.But now i bought a swap b16a2 whit obd2a ecu and bouth harness cabel....


can i leave the inrerrior cabel and go ahead 2 the ek4(b16a2) ecu,and that whit the cabel 2 the engine.


i hope you understand what i mean


sry for my bad english


greetz from germany

 

Okay im not quite understanding but i think i know what your asking. Answering the best i can.

You bought a B16A2(OBD2B) with a OBD2A ECU. All you have to do is use your existing harness and get a conversion harness from OBD2B->OBD2A, but that ecu your using is not good. Get you the ECU for your motor (P2T) and dont have to buy a conversion harness or get a chiped P28 and conversion harness from OBD2B->OBD1.

 

my car ist OBD2B

the Swap ist Full + Ecu OBD2A

 

so you're saying you want to use the wiring harness that came with the b16 swap? if that is what you're saying it'd be a lot easier to just use your current harness because using that obd2a engine harness in an obd2b car will not work. i hope i understood what you were asking?

 

yes i understand...you say that i take the orig obd2b harness...

 

exactly. you might have to add the wires for vtec or something but it's not hard at all. tons of write ups on it

 

an guys what i need 2 change

 

If your car is already VTEC then its prewired. Dont have to add anything.

 

You can also use an OBD2b -> OBD2a conversion harness to plug the ECU into your existing wiring.

 

my car has none vtec

 

i have a question that i really need help on...
i have a 1999 civic ex and i am planning to swap in a 2000 ls motor soon. my question is, would a 2000 ls ecu run in my car because i heard there was some kind of security key mobilizer that disables my car from starting with the 2000 ls ecu??? is that true?? do i have to use some sort of jumper harness?
please help me out guys!