I did a search for this and found it, but not too many people had actually read the thread or said anything about it. And I found a better price too!
It's called a Scangauge II. It works with just about every single vehicle on Earth...including the rangers!
Here is a list of what it does...
**View the Horsepower of your Vehicle**
One of the Most Advanced Diagnostic Tools on the Market
Applicable on Most Vehicles from 1996 - Present
Reads & Clears Trouble Codes
Simple Plug-In Installation - Takes only Minutes
Vehicle Specific Gauges
Reads Conditions that Set the Trouble Codes
**Turns off Check Engine Light**
View Cost Per Mile/Cost Per Trip
Tells you when Vehicle is Ready to Pass OBDII Testing
Make and Store Up to 10 Rewriteable Codes to Send to Vehicle Computer
7 Standard Screen Colors & a Custom Setting w/63 Possible Color Choices
Displays Fuel Economy & Fuel Rate
Fuel Rate out to 1/100th Per Gallon/Liter
Displays Up to 4 Vehicle Parameters at any Given Time
Displays Battery Voltage
Displays Coolant & Air Intake Temps.
Displays Engine Speed (RPM) & Vehicle Speed (MPH)
Displays Manifold Pressure - Available on Most Vehicles
Displays Engine Load
Displays Throttle Position & Ignition Timing
Displays Open/Closed Loop
Perfect for Calculating Fuel Economy & Miles Driven on Long Trips
Displays Several Speed/Distance/Fuel/Temperature Settings
Simple On-Screen Operation
I just bought one for my new Taco today! I'm excited! Here is the website I bought from...
oh and here is a coupon code: CTSG2 saves $10
Mine was $149 free shipping!