In-depth technical write-ups and explanation of products and their operation, as well as answers to frequently asked questions.

	Air/Fuel Ratio Gauges			Ammeter and Voltmeter
	Boost, Pressure, Temp and Vacuum Gauges			Fuel Level Gauges
	Speedometers			Tachometers

General:
• Diesel Truck Tips: What gauges you should have, and how to mount them.
• Mechanical vs. Electrical Gauges.
• Why doesn't the pointer on my instrument return to zero?.
• Do I need a sender for my electrical gauge?
• Can I install a fuel pressure gauge inside my car in the dash?
• Will Auto Meter gauges fit into my stock dash to replace the OEM gauges?
• Can I install a pressure or temp. gauge on my import vehicle? Email the Auto Meter Service Department (will open new window)
• What type of battery do I need?
• Wiring Diagrams (Instructions).

  Air/Fuel Ratio Gauges:

• A bit of clarification on how they work and what they look like when they are working.
• Air/Fuel Ratio gauges and Oxygen Sensor operation explained.
• Where the violet signal wire from the Air/Fuel ratio gauge connects to my vehicle and why the exact location of the connection is important.
• 0-5vDC O2 sensors and our Air/Fuel Ratio gauges

  Ammeter andVoltmeter:

• Voltmeter vs. Ammeter: Which is better for monitoring a vehicle's electrical system. .

  Boost, Pressure, Temp and Vacuum Gauges:

• Mechanical vs. Electrical Gauges.
• Mechanical temperature gauges and the capillary tubing.
• Why don’t the fittings in the mechanical pressure and temp gauges fit my specific vehicle?.
• Boost and Vaccuum Gauges: where to put them and how they can be used..
• Intake Temperature Gauges (and Installation) explained

  Fuel Level Gauges:

• Fuel Level Gauges and Senders. (version 1)
• Will an Auto Meter fuel level gauge work with my existing stock sender? (version 2)

  Speedometers:

• The automotive electronic programmable speedos explained; how to use it, how to calibrate it and basic troubleshooting tips.
• Pro-Cycle Electronic Programmable Speedos explained and troubleshooting tips.
• Mechanical Speedometer Calibration.

  Tachometers:

• The tach adapter, model number ATM-9117. What it is, what it does, and if you have a tach and a late model vehicle, why you need one.
• Why doesn't my tach pointer rest at zero when the ignition is off?
• What is the Tach Delay Feature and how does it work?
• Can my tachometer be converted to work with magneto ignitions?
• My instructions show 1-4 pulse per rev...What does that mean? Click here for more info on these models: 3904, 3905, 3911, 4299, 5899, and 6299.
• The newest addition to late model ignition systems...C.O.P. (coil on plug).
• RF (Radio Frequency) Interference and how it affects you.
• Where do I hook the Green Wire on my Tachometer? Late model ignition systems - how they work, how they work with your Auto Meter tach and how the tach will connect to your vehicle.
• Do any cars require special tach calibration?
• Tach Fact Software - First Time Tach Download Instructions.
• Tach Fact TechNote #1 - Text Corruption Fix (Error 9)
• Will my tachometer work on any of the following: Boats, Snowmobiles, ATV's and Motorcycles? - Check out the Auto Meter powersports site (will open a new window)
• How about: Garaden Tractors or other vehicles? - Email the Auto Meter Service Department (will open new window)