I need help with my VAFC on my '94 GSR. I have double checked the wiring and all is correct. I have connected the VTM. Whenever I get into VTEC, I get a check engine light.
I had to adjust the vtec point to 4400 L->H and 4100 H->L.

What could be wrong? Any suggestions on what I could double check?

 

i am sure http://www.overboost.com installed an afc a while ago, so you should check in there old articles

 

You should have gotten an extra sheet with updated diagrams. If not call Apex and ask them to fax it to you. Double check every connection on the diagram for your car. Also solder the connections instead of using the supplied connectors.