i have a 91 hatch with a 95 sohc vtec swap and i need to convert it from obd0 to obd1, and i really dont know what to do lol so if there is any site to get the diagram or something so i can wire it up, please let me know. thanks


oh and i already have the obd1 harness.

 

It's been covered many times if you searched, but here's the skinny on it:

- 1st off, you don't use the obd1 harness

- you need a 0bd0 to obd1 harness jumper, obd1 dizzy, ecu and 4 wire o2 sensor

 

thats what i ment to say, everything is done, the only thing left is the jumper harness

 

Plug and play....then, the pigtail has an add on for 4 wires you run to the engine compartment

- vtec solinoid
- knock sensor
- o2 sensor
- extra grounding wire

 

alright, ill give it a try

 

https://honda-tech.com/zerothread/1508680