I've been searching and searching. Either I don't understand what the heck some people are talking about or... i'm a little slow. Anyways, doing LS/Vtec for a friend and the inside cabin wires are ran correctly.

Problem is:
I have a 94 OBD1 LS engine harness. I'm trying to run the Vtec wires (3 wires?) into the harness, 1 going to the Vtec soleniod, 1 going to the pressure sensor and then 1 other wire...no idea where it goes.

Here is a picture to explain it:



Does the black wire from the pressure sensor go to a grounding point?
Also, can someone check to see if I have the wiring correct on the plug for the pressure sensor too please. Thanks in advance!

 

black wire is pressure switch ground. I can't see the pics (firewall at work), what ecu are you using? for most obd1 you want:
solenoid (one wire plug) - A4
Pressure switch - D6
Pressure switch ground - A26 (or with P28, can be grounded to the head)

 

Cool looks like I ran everything properly. I grounded the black wire to the head, ran it into the grounding spot/part on the harness.

 

What ecu are you running? you may also need to wire in A knock sensor.

 

How do I do that? Using a stock p28.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek9vboi2 &raquo;</TD></TR><TR><TD CLASS="quote">How do I do that? Using a stock p28.</TD></TR></TABLE>

You don't with A p28

 

cool, thanks a lot guys.