I have a F con V Pro on my 2003 evo. My tuner was suppose to change me to air density. He installed the iat and the map sensor,but the f con itself only three of four wires are connected from the iat/map sensors. I looked at at all the colors, there is a blue/green/yellow connected but the fourth a grey is not connected. On the f con side there is a brown not connected.

Can anyone tell me for sure if it needs to be fixed?

 

who did your work? what exactly is your concern? is it running ok? The only HKS authorized tuner I know in Vegas is Mike, I never heard any problems with him, he seems to know his stuff very well

 

It ounds ok, PM me if you need help as I am an HKS pro Dealer

Sean