From a first gen b16 that is the vtec solenoid. the green one

 

That would be the VTEC oil pressure switch/sensor.

 

I am assuming I need that one pluged n to work eh?

 

Yes.

 

Everywhere I look doesnt tell me that I need to plug it in so Where do I connect these cuz it isnt on my dx to mpfi harness

 

Run the VTEC solenoid wire to pin A4 on the ECU. Run the VTEC pressure switch to pin D6 on the ECU. Connect the pressure switch ground wire to a good ground.


Do I do this instead of hooking it up to the plug in the back of the block?

 

the one on the back of the block is the knock sensor - goes to B19 for OBD0 or D3 for OBD1


Modified by jlicrx at 8:33 AM 2/15/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ak_ef9 &raquo;</TD></TR><TR><TD CLASS="quote">Run the VTEC solenoid wire to pin A4 on the ECU. Run the VTEC pressure switch to pin D6 on the ECU. Connect the pressure switch ground wire to a good ground. </TD></TR></TABLE>are you OBD0 or OBD1? those pinouts are for OBD1 - OBD0 is VTEC solenoid to A8, pressure switch to B5, 1st O2 to C16 and 2nd O2 to C8

 

also what ecu are you running? I believe some obd0 jdm b16 ecu's don't need the pressure switch to engage vtec.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by konrad &raquo;</TD></TR><TR><TD CLASS="quote">also what ecu are you running? I believe some obd0 jdm b16 ecu's don't need the pressure switch to engage vtec.</TD></TR></TABLE>

sounds mysterously, since the pressure switch is the thingie that activates vtak! Unless you got the Flux Capacitor, ofcourse.

 

Some jdm ecu's are set to engage vtec at a certain rpm without a pressure switch.

 

without the pressure switch? How does the car know when to activate vtec then? At my best knowlegde, the vtec is oil pressure driven. ergo, it needs an oil pressure switch that activates at given pressure.

 

search you'll find out. why do you think some jdm b16a motors come without a pressure switch??

 

i've wrenched tonnes of B16's. Never ever encountered one. But, Honda works in mysterious ways. I dont question you, it just doesnt sound logic to me. Thats all. I will dive into the matter.

 

over to the question at hand. If this is a swap with obd0 system you could be needing this.

http://rywire.com/store/produc...b9147

 

Only the very late model jdm b16s have no oil pressure switch. OBD 0,1 need it to be there.

 

Thanks bro. I ended up reading some page that has the real directions here it is. Look what it says under wiring vtec about 70 percent down

http://www.norcalcrx.org/dropp...p.htm

Awsome site for dropping a b16 in

 

Cheers m8.