Oemy's Web Site - OBD II Scan Tools

OBD II Scan Tools

1. Car Code OBD2 Scanner              2. ProScan                  3. AutoTap

4.Scan Gauge II                              5. Aero Force

There are any number of OBD II (On Board Diagnostics) scanners. Some are hand held, some PC laptop based and others are gauges. So, which one do you get? The one that fits your needs. Me, I have Car Code, ProScan and Scan Gauge II. The Scan Gauge II provides the needed gauges that the Acita cluster doesn't. But,for real diagnostic work I depend on Car Code as it does everything I need to support UltraPower programming.

PC Laptop

  • OBD-2 Vehicle Explorer Scan Tool Browser
    Sold By: Alex C. Peper dba Car Code
    Car Code
    129 North 4th Street
    Saint Charles, MO. 63301
  • Proscan - See Warning below before ordering.
    Sold By: Gore Research
    4 Terrace Woods
    Logan, WV. 25601
    304-592-4892 (voice mail system)
  • Autotap
    Sold By: B&B Electronics
    707 Dayton Road
    PO Box 1040
    Ottawa, IL 61350


  • Scan Gauge II
    Linear-Logic, Inc.
    2222 S. Dobson Rd
    Suite 800
    Mesa, Arizona 85202
    Available from Oemy.
  • AeroForce Interceptor
    Sold BY: AeroForce Technology
    Also availible from various dealers. Check the web site for locations.
Car Code OBD2 Scanner

Although a Scan Gauge is great for displaying information like water temp, battery voltage and the like it does NOT have the ability to record, save, analyze or export any data. This is why I have Car Code installed on my laptop. I use it to record a static scan or an on the road scan that I send with a copy of the ECM code to Brazel's. This allows them to customize UltraPower to the coach.


Basic cable for GM - VPW Protocol

Hardware - Trican - All Protcols

Most of the time you will just use the Dash Panel function. You can select 2 large gauges and 4 small gauges to display. You can also customize the colors of the display.

With the Car Code scanner you can record all "PIDS (Parameter Identifications Descriptors)" available. This data can be saved and exported to an Excel .CSV file for analysis.

Plus you can get enhanced data for a more in-depth analysis. This data is also saved and can be exported.

Example - Injector Pulse Width

Why is this important? Should a scan show an imbalance, data like this could be use to identify an intake or exhaust leak. An intake leak can create a instant lean condition that could lead to a piston failure and cost you a new engine.

You can also check and clear DTC's (Diagnostic Trouble Codes).

But, if you want to do some serious diagnostics this program has all kinds of options. Here are a few optional function screen shots.

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Warning - It seems that Gore Research is not shipping product in a timely fashion and receiving payment. So, BUYER BEWARE !

This program is very similar to most scan tools. But it has a couple features the most scan tools don't have. Race Track Analysis and Dynamometer. Although this is geared more to a performance car I thought it would be fun to play with on my RV.

Hardware - All Protocols

This hardware is basiclly an ELM All-In-One and will run any ELM 327 based hardware.

Connection Mgr

Sensor Monitor

Engine Status

DTC Codes

Race Track Analysis


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I have included AutoTap even though I do not own one because of the cost compare to Car Code OBD2. The basic unit runs about $200 and the "Enhanced Data Modules" (GM, Ford, Chrysler) run about $100 per module. But, they do run some specials and you can save as much as $200 on the complete package.

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Scan Gauge II/Xgauge

This Scan Gauge has some neat features.

  • Setup
    • Gallons/Liters
    • Miles/Kilometers Per Hour
    • Fahrenheit/Centigrade
    • Engine Size
    • Fuel
      • Gas/Diesel
      • Tank Size
    • Cutoff
    • Speed Calibration
  • Display
    • Customize the display background colors.
  • Scan for DTC's (Diagnostics Trouble Codes)
    • View Stored Codes
    • Clear Stored Codes
  • Fillup
    • This function is used each time you refuel to get you accurate fuel usage and cost.
  • Trip Information
    • Max Speed, Max RPM, Max Coolant Temp
    • Average Fuel Economy, Average Speed
    • Trip Fuel Used/Cost Trip Miles/Elapsed Time
  • Fuel Tank Information
    • Fuel Used Since Last Fill, Fuel Remaining
    • Distance & Time Driven Since Last Fill
    • Distance & Time Remaining Before The Tank is Empty
  • Xgauge
    • 0-24 Memory slots for gauges not part of the default package.

This is not a complete list of all of the various functions that are part of the Scan Gauge II/Xgauge package. For more info check the Users Manual. It should be noted that the Manual that is shipped with the unit is for the young with really good eyesight. For us older folks I would download the manual and print it in a font you can read!

The default gauge set consists of:

  • CPM - Cost Per Mile
  • VLT - Battery Voltage
  • IA - Intake Air Temperature
  • FPR - Fuel Pressure
  • GPH - Gallons Per Hour
  • IGN - Ignition Timing
  • LOD - Engine Load
  • LP - Closed/Open Loop
  • MAP - Manifold Absolute Pressure
  • MPG - Miles Per Gallon
  • MPH - Miles Per Hour
  • RPM - Revolutions Per Minute
  • TPS - Throttle Position Setting
  • WT - Water Temperature
  • TFC - Trip Fuel Cost

First you need to do SETUP to configure the engine size, fuel tank size etc.

Once you have the completed Setup you can select the gauges you want to see.

Press GAUGE and select your 4 gauges to display. I picked Water Temp, Intake Air Temp, Battery Voltage and Transmisson Fluid Temp. Note - TFT is part of the Xgauge function.

The Xgauge part of the Scan Gauge II allows you to code up to 25 (0 to 24) different eXtra Gauges.

Select Xgauge

Before you start coding gather all the codes for the various gauges you plan to install. Now select an empty memory slot and then select Edit, enter the data for TXD entry and press OK.

Now enter the data for the next field and repeat this proceess until you get the the SAVE screen. Don't worry if you made an error, as you can go back an fix it via the Edit function. There are any number of gauges for various vehicles. I added all the gauges for the GM 8.1L with a Allison transmission.

  • HPR - Horse Power
  • TQR - Engine Torque (Currently does not work on my coach)
  • TFT - Tranmisson Fluid Temperature (Allison 5 speed)
  • KR - Knock Retard
  • AFR - Air Fuel Ratio
  • OLF - Remaining Oill Life (GM Oil Life Monitor)
  • BAR - Barometer for V8
  • ET - Elapse Time Since Engine Start
  • O11 - O2 Sensor Bank 1 Sensor 1
  • O21 - O2 Sensor Bank 2 Sensor 1
  • SF1 - Short Term Fuel Trim Bank 1
  • SF2 - Short Term Fuel Trim Bank 2
  • LF1 - Long Term Fuel Trim Bank 1
  • LF2 - Long Term Fuel Trim Bank 2
  • MAF - Mass Air Flow Sensor

Press Save and your done. Note - The memory slot on this screen does not match what I showed at the begining. The reason is this entry was already done and I just needed to create the photos for the web site.

Now all you need to is repeat the process for any other guages you may want. Liner-Logic has a file on their web site with all the gauge parameters necessary create the various eXtra Gauges.

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AeroForce Interceptor

AeroForce provides many of the same functions as Scan Gauge II does.






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