Apex1.0

So I did search, but I still have a few questions regarding VAFCs.

1) Will a PnP harness for a VAF2 work with a VAFC1?

2) If I install the PnP harness, can I run the OEM tune without using the VFAC?

3) I have a used VAFC but the display does not light when hooking up the power wire. Is it broken, or do I need to install it completely?

Thanks,

Apex1.0

Any help from the VAFC experts?

s2000ellier

You probably need to connect Ground wire in addition to Power wire to have it turn on.

If you zero out the VAFC the car will run as if the VAFC wasn't connected even if it is connected.

The VAFC 1 vs 2 harness probably doesn't matter.

Apex1.0

I hooked up two power wires and two grounds. The unit did turn on and seems to work. I initialized it but the settings did not reset. Also the unit runs warm to the touch. Is that normal?

s2000ellier

Yes it will get warm, its normal.

Merknsissys

Unless it gets really really warm from being hooked up improperly..just out of curiosity why are you using a VAFC after all the negative things people have to say about them, as I dont care for them from personal experiences as well.

Apex1.0

Because, I know what it does and what it doesn't do. I have the right expectations...

Show me a more cost effective, simple way to lower vtec and tune for more WOT power on a mild setup.

YELLOW JACKET

had a vafc 2 and was very pleased with it. vtec engagement was 5500 and wot afr set at 13. no negative experiences. it would help to have a wideband gauge to setup or have it tuned on a dyno. pnp

james0933

With a test pipe, generaly whats a good spot to drop vtec to? What do i enter for hi-lo and lo-hi?

YELLOW JACKET

ideal setting for vtec is where torque curve crosses the hp curve. for ap1 that's around 5k to 5500. any lower and the crossover lag gets longer. as for the hi/lo...lo/hi, not sure. don't have my setup notes anymore.