MAD SCIENTIST

ok ive already done searches had friends do searches on this site and on others and the only answers i get are do searches so heres my question.
i have a 97 dx are there any wiring changes i need to do besides the vtec soleniod if i swap in an obd2 b16 or b18?i know i need the obd2 ecu and a hasport mounting kit. but the wiring thing is kinda confusing
thanks in advance
larry
ps is someone can search and find it post it here

superchin

im not too sure but i think youll have to get a different o2 sensor too, thats probably the only thing besides vtec

jameskersten1

i believe you have to wire in the knock sensor, vtec, and different o2 sensor. not positive on that though since i am a noob in the obd2 area

J_SpeC_EK

find a 96-98 EX harness..get a OBD2 - OBD1 conversion harness, so you dont have to worry bout hooking up the crank sensor and second O2 sensor.. makes life a hole lot simplier.. as for the hasport mounts, not needed unless you are just straight balling..

poison

Yes if you use the DX harness, you need to do the IACV fix to go from a 3 wire IACV to a 2 wire.

I would just jump on a 96-98 EX wiring harness and your problems will be solved.

MAD SCIENTIST

ok guys thanks for the help heres my only real problem in Pa we just started an obd2 emissions program.i need to stay with the obd2 so should i just get the 96-98 ex harness and what do i have to wire in and where?im sorry i know 88-91 like the back of my hand but this is all new to me. will the harness plug into my harness plug into mine?does anyone sell a completed harness?
thanks

J_SpeC_EK

if you wanna still ob2a, just get a 96-98 gsr ecu. it should run both b16a or b18c. IF you get the EX harness, there will be no extra wiring,all the wiring is there. jus some extending of wires. Oh, and you are gonna have to change 2 or 3 plugs out, can't remember which plugs off the top of my head..

edit: sorry, i told u wrong, if you go gsr (b18c1) you have to run the IAB, which is for the secondary butterfly
if you go b16a, you wont have to do any extra wiring..

MAD SCIENTIST

i want to go with a obd2 b16 if i get an ex harness i have to extend some wires and change some plugs are the colors going to be the same on those plugs?

J_SpeC_EK

yes.. most of them are.. the same color..