Is there a way to add the mpg display to an 08 fx4. My buddy just had to add a switch to his 11 toyota. Is it this easy for us to?

 

Check out a scangauge. I think I paid about $100 or so for it. It also does MUCH more than just MPG. It's "read only" though, that is, you can't change your computer settings. I put one in my truck, you can see it here below the radio:

 

I second the Scanguage, I have one in my ranger and its great. The extra gauges are a great thing to have.

 

Also another route to go would be to get a programmer like an edge evo. They can display a whole bunch of different parameters, MPG included, with the added benefit of being able to tune different aspects of your truck. They are considerably more though. Mine was $350.

 

How does that scanguage hook up to the truck? Looks sweet

 

I have an edge cs and the mpg average reads around 20 mpg which is about 7 mpg too high. Is the scan gauge more accurate?

 

The edge in my f150 reads about 1.5 mpg higher than when I hand calculate it but the dash display reads typically 1.5 less than hand calculations so nothing is really as or more accurate than hand calculating. I really like the instant mpg readings, even though I know the numbers showing aren't the exact mpg I'm getting at that moment but I can judge what throttle input and RPM's do in relationship to the higher or lower numbers on the display.

 

Hmm... I wonder why mine is so far off

 

It plugs in to the computer port thingy (technical term) below the steering wheel. It comes with a right angle cable so it comes out of the port nicely and doesn't get in the way.

 

Obdii