so ive searched and searched. i found the answer once, but lost it. im dropping a vtec obd1 engine and ecu in a nonvtec obd2b car using the cars stock engine harness and an ecu coversion harness. ive got everthing worked out except the iacv plug and the o2 sensor wire. i want to just swap iacv plugs, but which two wires do i splice to my harness and which wire is ignored? and my current o2 is three wire while the obd1 is one wire, which sensor do i run and how do i wire it if it needs changed? thanks for helping

 

bump... help please...

 

nobody knows? i really did search and found nothing to help except the most basic junk... i know somebody has the answer.

 

you leave the orange wire out on the iac, and on the 02 sensor i think you hav that plug mixed up (most likely w/ spd sensor) o2 sensor from obd1 and up were 4 wire and some were 5 wire

https://honda-tech.com/zerothread?id=558245

 

easiest way would be gettin an si wire harness

 

oh its obd1 single cam vtec...

yeah o2 is 4 wire currently- 2 black, one green, one white. the obd1 engines o2 is one black wire... seriously thanks a ton on the iacv answer though.


Modified by hatchnideas at 12:09 AM 7/15/2007