like state i have a 96 d16y8 swapping it into 00 civic hb cx... i have the motor tranny obd2b dizzy and wire harness... gonna buy the 99-00 p2p ecu what else do i need to get the car running?

 

You know you are just better of getting the 96-98 wire harness because the P2PA-12 ECU has a Fuel Tank pressure sensor which you car does not have. So you will always have a check engine light, unless you fool the ecu by give that pin a constant .5v. I would just get the dizzy and harness from the OBD2A and it will make life simple.

 

^ the op's car is a 00... why would he get a 96-98 harness... just use a 99-00 ex harness , dizzy and ecu and you should be fine

 

I'm just telling him about the CEL he is going to get. I have a CEL right now which is code 91 and that what he will get also. I have a 00' D16Y8 with the 99-00 wireharness and ECU in my 99 Hatchback DX. I am in the middle of trying to fool the ECU so I don't get the 91 CEL.

 

would that CEL 91 cause the car not to start up then? or the car would still crank up...i know forsure the CEL is gonna be on since i don't have the 2nd O2

 

No, CEL 91 will have no effect at all until you have to do smog. I just don't like seeing a constant CEL while I drive. It annoys me.

 

well i guess i have to deal with the CEL light then

 

not to highjack, but since its part of the subject. How do you make the second o2 connection. I know the ex had the connector from the cab harness. mine is a 96 hx(don't have the y5)

 

good question...i been thinking about that question myself too

 

well I saw the ex wire today. got a motor and tranny, had to pull it. but I know the y7 engine harness has both o2's on it

 

get OBD2A harness, everything should just plug and play

 

https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/faqs-frequently-asked-tech-questions-1998336/
http://www.ff-squad.com/technet/code91.htm
http://www.ff-squad.com/technet/wiring.obd2b.htm

 

is that referred to the orginal topic question or the o2 question lol