Well I got my pr4 chipped for vtec (obdo) but we are having problems figuring out how to wire up vtec.

I believe the connector pin is B3 that plugs into the ecu. It is orange and red (I think off the top of my head/color blindness).

We traced it but it leads into the engine harness .

In order for vtec to be chipped in, removal of a/c was needed so we awesome this wire has to do with the a/c but so far it leads to no A/C components

If anyone has sucessfully put a pr4/vtec obdo and used it correctly on a mini-me could you post up how you got vtec to work.

-Shane

 

ill try and find out for you. i don't do electrical. im running the same ecu on my d15b and it works. i don't know if its any different, but isnt the vtec wire into the ecu green?

 

this pr4 is originally from a 90-91 Integra obd-O. It did not come with vtec. It is pretty much a pm6 but a little different. I am not sure what green wire you are talking about. I am not a computer guy or a electrically guy but looking at these schematics I am getting better

 

yes i know its originally the older tegs. i had mine chipped for vtec.
i sent the link to the guy that does all my electrical crap, hopefully he takes a look for ya.

 

Okay thanks man hopefully you hear back soon

 

just trying to help you out. i went out and checked my ecu/wiring
and from what i could see, there isnt any orange/red wires. i found a bunch of red/yellow and a couple red/black wires though.

there's a few wires that have been tapped into, im not quite sure what they do though.
havn't heard back from the guy yet, but soon as i do, ill let ya know.

 

Yeah usually the wire goes to the a/c clutch relay,,then you put the wire from the relay to the vtec solenoid....If you dont have any of that a/c stuff at all then just run the wire from ecu to an automotive 5way 30amp

Also Im pretty sure that its A13 for the 12v signal..