hey honda tech i need help i want to convert my crx completly to OBD1. what are the things i have to keep and wire from OBD0 to OBD1 if u have pics or some people with better advice thanks alot ill take what i can take.

 

Take out your body harness rem

 

Take out your body harness. Remove obd0 ecu plugs, add obd1 ecu pins and re arrange them in the correct order. Take apart your shock tower plugs and re configure them to obd1 shock tower plugs. Add in 4 wire o2 wiring, vtec, etc... Depending on your set up. Plug in an obd1 engine harness. Done


If you need it don Lmk
916-541-5266

 

you can leave your old plugs inless you want a fresh look with a touch of grey! but when you order a obd0-obd1 jumper ecu harness its plug n play style and will give you instructions on how to wire the 4way o2 sensor and the vtec if you go with that option. there will also be a knock sensor wire for b-series type motors and 2 extra ground wires aswell as 2 12v source wires for other sensors you dont really need inless your going for state b.a.r and last 2 i believe theres a jumper wire to check codes & service connector for a scanner!

also buy the obd0-obd1 distributor jumper harness to plug n play that! if you want to use obd0 injectors leav your resister box alone and remain using your obd0 injectors! if you want to upgrade to obd1 go junk yard get the new style plug and rewire all the old wires to the new style and you need to do the same to the injector pigtail connectors cut the old obd0s off n install the new obd1 enjoy

 

crx si-r.... hey man im puttin a y7 in my rex an wont to know what all i need.. the rex is gutted all the way out just shell.. i have the wirein an motor an ive put the y8 header and intake on. so do i just plug everything up an see if it runs?? like i said there is No wires at all in the car.. need help

 

At the very least you you need the chassis harness to be present so you can plug in the ecu and get power to it, as well as power the fuel pump

 

ok man thanks

 

i got the wire harness for the motor an ecu and the little fuse box under dash i grabbed it.. so i will need that chassis harness that goes to the fuel pump?? could i just hook up what i got an run a hot for the fuel pump on a switch??