ok heres my scenario- i had a d15b7, swapping it out for a d16z6 i bought a p28 ecu (manual) I DID NOT BUY THE D16Z6 wiring harness. I have the motor in everything went back in like a charm. heres my prob- The old wiring harness was not set up for vtec- or so i thought- the wires coming from the solenoid and pressure switch run up to the d15 wiring harness and there is a wire there (oragne and white0 (orange and blue) these wires go exactly onto the exu like the pinouts that people helped me with state- i have heard that some 92 sedans were pre-wired for vtec but didnt have the d16z6 anyone have some info? PLEASE thanks

 

get a plug for the vtec oil pressure and a wire for the vtec solenoid...and connect the wires to the plugs in the back of the ecu

(all you'll need is a4 and d6 to wire up)

 

I have a black wire screwd to the solenold??? I didnt do the swap just trying to figure out why it dosent work. Is there a ground for the solenold? If there is a ground shouldnt it be screwed somewhere else? Where is the
speed sensor at??? Sorry still kinda new. Trying to learn how to read the schematics.

 

up yeah do i have to wire the black wire from the vtec press sw to the vehicle speed sensor? i just have the same vtec swap a week ago, and that black wire is just grounded... thanks

where is the vehicle speedsensor?

 

Speed sensor location plz............

 

blah... i just did mine, just like what they said theres only 3 wires you need to do 1. to the vtec selenoid the other two from the vtec press sw, just ground the black wire on the body thats all

mine works, and i got the chance to put it a vtec light

 

i grounded mine to the thermostat housing with the other ground wires

 

grounded mines to the VSS....works fine.