Greetings. I have a V-AFC II installed in my S2. It was installed by myself and a friend. The install was done well, but the manual did not reflect factory ecu wiring for 3 different wires:

VTC - cam signal
TDC - signal
VTM - signal

We have the three wires from the VAFC capped off, but according to APEXI, you have to have the VTM wire connected. There is no documentation as to where to connect this that I have found.

Anyone who has a V-AFC or knowledge of them, please help. Any diagrams or info that include the VTM at least, would be great. Thank you.

 

I just installed mine last weekend. Unfortunately I don't have my diagrams with me at the moment, but I do recall the three you listed, and I recall that the manual didn't describe their ecu locations. I went to the dealer's parts department and asked a mechanic to print out the factory ecu diagram for the a, b, and c ports. I believe two of the three you're missing were listed there.

I believe either the VTC or VTM wasn't used from the Apexi side (not connected to ECU) because not all Honda models use it. One of these wasn't on the factory diagram, so I capped it. The Apexi mentions that one of them may not be used.

I've had no issues with my connections so far. My diagrams are at another location. If you don't get more clarification on this from others here, I'll try to make a trip to get these for you.

 

Try this: