Hey guys-- I recently put my built motor-- and having some issues with the wiring.
Setup:
83mm LS
GSR Head
94civic EX auto engine harness

I guess the main thing is that even though the wiring harness has vtec, I guess my 98 LS chasis harness must not, because I'm throwing a couple codes, one of them being vtec sensor. Also, i'm throwing the knock sensor code (to be expected). I am also running the obd-2 to 1 jumper harness. soooo my question is-- where am I missing a connection to get my vtec to engage? I'm getting the car tuned this wednesday, so obviously this would help Thanks guys!

 

Here's apic to spark some interest:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integranator &raquo;</TD></TR><TR><TD CLASS="quote">Hey guys-- I recently put my built motor-- and having some issues with the wiring.
Setup:
83mm LS
GSR Head
94civic EX auto engine harness

I guess the main thing is that even though the wiring harness has vtec, I guess my 98 LS chasis harness must not, because I'm throwing a couple codes, one of them being vtec sensor. Also, i'm throwing the knock sensor code (to be expected). I am also running the obd-2 to 1 jumper harness. soooo my question is-- where am I missing a connection to get my vtec to engage? I'm getting the car tuned this wednesday, so obviously this would help Thanks guys!</TD></TR></TABLE>

You need to wire in vtec solenoid, vtec oil pressure switch & knock.

You can simply bypass vtec pressure switch and knock via your chipped ecu/tuning.

Concerning wiring diagrams, you may find pinouts on http://phearable.net/tech or simply pay your tuner a few bucks to run the wires needed.

 

I would wire in the pressure switch though. Rather be safe than sorry.