I have the vafc wiring diagram for our ecu and everything looks good except for the pressure signal. The rpm, power, and ground (which the vafc and vortech box have) just splice into the ecu wiring, but the pressure signal is different. The pressure signal has to run from the sensor (in the engine bay) through both the vafc and vortech box then to the ecu. So I guess the only question that I, and I know others will and do have, is which does it go to first?? Which one of these is correct--->>


sensor - vafc - vortech - ecu
[ ]------[ ]-------[ ]-------[ ]

-OR-

sensor - vortech - vafc - ecu
[ ]--------[ ]-------[ ]-----[ ]



Thanks in advance!

 

Does the VAFC harness still work after vortech installation?

 

I wouldn't know. I didn't use it.

 

Second diagram is it.

 

thanks

 

Mine is like the 2nd diagram.

 

Would either of you be able to post your vafc settings? Over 35% throttle she falls right on her face. The only thing extra I may have is a 72mm throttle body.

 

Does anyone make a VAFC harness for the S with Vortech kit?

 

My VAFC harness works perfectly w/ the Vortech control box. I got it through cyberlogic. 2nd diagram is right as you want the VAFC "downstream" from the other connections. My car runs much smoother and has a better "sound" than before the dyno/VAFC tune. I am having a ton of fun with the S/C!!! Phil