I have done some looking around on the site and it seems that what I have and what others have are different for some reason. I have some pictures of what I'm dealing with, I'm not sure how to hook up the wiring to the oil pressure switch if you guys could maybe point me in the right direction, it would be very helpful....








I can take more pictures if they are not clear enough...


thanks,
PABB4

 

Can't see your pictures, but this is how it should be wired. One wire goes to ground, the other wire goes to the light blue wire in the wiring harness. Sine I used an old plug from a temp sender, it is the green wire going to the ecu, and black to ground on the thermostat housing.

 

I'm going to try and post pictures again....
I have a green/yellow wire coming from the vtec SOL. I would guess that it would get paired with the green/yellow wire from the fuse box area.
How ever since I do not have a oil pressure switch on my Vtec SOL. Do I need to attach the blue wire in with the green/yellow wires?

**Note** 1993 prelude si pre-wire for vtec from factory. H23 block h22 head build. ***

 

the green/ yellow wire connects to the other green/ yellow coming from the fuse box area yes.

The blue wire over there is a tach signal. If you look in the faq's for the vtec wiring, and check the pinouts of the ecu, you will find the wire needed, which is usually a light blue, and mine was taped up in the harness by the abs motor.

What ecu are you using? If one that does not use the pressure switch, or it can be turned off in a tunable ecu, you don't even need that wire at all. If using a stock prelude ecu, then you do.

 

Since I dont have OP switch on the SOL. Do i need to do anything with the blue wire? Does anyone know?

 

Update: I've connected my green/yellow wires. I did not connect my blue wire since I was not sure where to connect it. I have a check engine light on and it is 22 which is vtec pressure solenoid. So that blue must hook on some where, does anyone know where?

 

That blue wire is not the right "blue" wire has nothing to do with vtec if you look behind the passenger shock tower near the fuse box there's a connector coming from the ecu peel back the wire cover and you will see a light blue wire on the harness connector it has a plug leaving it blank I just cut the light blue wire and spliced in a wire for the selonoide that blue wire in the picture is not the right one.