[Misfit]

All you need is the OBDII block and cable. The OBDII port on your truck will power the unit.
So all you need to do is plug it in and go from there. You might need to slide the switch on the block to "on" to power the unit.

I think the fuse block is only if you want to do a permanent installation, where the BDGT powers on each time your truck is cranked, and off when the engine is off.

 

[Misfit]

I no longer have a BDGT, so I'm trying to recall from memory. Hopefully, someone with a BDGT can confirm my instructions.


If you are only adding a timing advance, the truck has to be running and at normal operating temperature. The timing advance is in special functions.

To tune the truck, you'll need to select your vehicle. I think the BDGT divides the Titan into two groups, based on year model. Once set for your truck, turn the key to the run position, but don't start. Make sure all accessories are off!!! Then, you go to the download section and follow the instructions.

Before your truck is actually tuned, the BDGT will download your factory file. This is automatic and part of the tuning process.

When you get to the tuning part, you can select your octane level, throttle sensitivity, speed limiter, and most important, WOT restriction OFF.

I got the best results using the 87 tune with performance throttle sensitivity and WOT restriction off. Speed limit was set to 180.