So the one wire fell out of the wiring harness, and now vtec won't engage, so I need to know where it was supposed to go. I have seen the schematics of the harness, but I don't know which wire is the vtec pressure switch and blah blah. So the blue wire is the one that I can't figure out which pin to attach it to. The black wire is to ground. And the green wire is to, I forget what pin. But if someone wants to tell me just so I can double check it, that would be cool. Thanks for any help

 

That blue one is for the VTEC pressure switch.

If it fell out of the harness at the ECU port, you'll need to open the little flap in the plug, and reinsert the blue wire end into D6.

 

damn, that was the fastest answer ever. thanks a lot. im going outside right now!

 

Right place, right time I guess. Let me know how it goes...

 

I just need a little more help. I am trying to pull up the white secure piece with some needle nose pliers, but it doesn't really budge. I know not to try too hard cause I'll break it, any advice?

 

Pics of said white piece please?

 

pm'd

 

Sorry, it seems this is obd2, which I know little about. I should have asked what engine you had first. Bump for some real answers.

EDIT: Is this obd2a or obd2b?

obd2a, it may be worth looking into port - C15

if it's obd2b, it could be port - C10

I got it from here, by looking up what pin from each obd2 is the equivalent of my obd1 pressure switch wire, which is D06. Hope it helps, but I also hope I'm not giving you bad info.

 

It is plugging into an OBD2a harness.

I don't know if D6 is correct or not, it seems to make no difference when hooked up.

 

if you view this, and don't have an answer, please bump it so that i can try to get the right answer

 

bump for answer!

 

On an OBD 2 plug the little white part does not go out all the way... just a little bit... get a small flat head and pop out the same amount on both sides of the plug.... heres what you need for OBD2a

For OBD2 you count accross

Vtec-a6 (green yellow)
Pressure switch (c15)

and you can ground the black wire coming from the pressure switch right onto the motor. LMK if you need anything.

 

alright, so the blue goes to c15. I will have to try this then. I want to now, but im at work and I don't know how big they would be on me just leaving haha.