Just wondering who all's tuned their engines? I'm looking for any sort of feedback, as I would like to tune this 3.9L, get a bit better mpg up here in Laramie, and some better performance when I head back home. Don't know too much about programers/tuners so any info will probably be helpful.

 

I have enjoyed my Hypertech. There are some folks who have had bad experiences witht hem on here so I will let them talk about that and more. I can feel a difference especially at passing speeds.

 

I'm doing all my own "Lookin'-after" my Monte.
I saved some BIG Bucks, today!

My Check Engine Light came on after I attempted a electrical Mod to run power to my Fog Lights.
The Code said my O-2 Sensors needed to be replaced.
I knew that needed some researching before shelling out for new Oxy-sniffers; so I asked for the Full print-outs on the two Codes the computer threw after I tapped into the Wiring Harness for a +12-Volt Switched feed.

The read-out said to check the O-2 Sensor Fuse.
I did!
And the Fuse was blown.

One new Fuse later ... and, after a Code Erasing ... the Monte is back to Normal.
No "Light"
Hitting the Road this weekend without the Little Yellow Engine drawing glowing and saying "Check Me"!

 

Tuning takes quite a bit of time as I'm finding out. I have probably 40 hours invested and haven't changed anything yet. I just got a tuning guide though so I am well on the way now.

The Hypertech is a good tuner if you are looking to do the most basic of things. It is like comparing a calculator to a Mainframe.