does anyone know if it is possible to tell from the vin if a truck is federal or California? Basically I'm trying to figure out how to hook up to the fuel pressure vacuum nipple. My truck has a vsv that has an electrical connection mounted to the firewall just behind the intake. I was thinking that was the vsv that the cali trucks have. But then I found a picture of 4crawlers hoses and his vsv mounts to the valve cover.

Anyway thanks for the diagrams you guys!

Gonna get back at it in a minute here...

I will definitely unhook the battery. I was thinking of running out my tank of gas and putting 91 in there, and I'm sure that would give the ecru time to relearn.