I am in the process of hooking up my splice-in harness for my Gen7 DFI from Fast Track Performance.

I called Mac to ask him these questions, but while I am waiting for him to call me, I figured I would post here.

There is a Fuel Pump relay wier that is optional to hook up. It says you can leave the GEN7 to control the fuel pump, or leave it and have the stock PCM control it. What are the advantages or disadvantages of leaving the stock PCM control it? Gen7?

Is the HEGO sensor an option? I didn't receive an O2 sensor to replace mine, but, the kit instructions talk about replacing and then splicing into the harness. Of course, the kit instructions also talk about hooking up a cam signal (which is also an option)

Any ideas?

Thanks..

--Sean