❓ Frequently Asked Questions
Q
Why doesn't the gauge pointer return to zero when the engine is off?
These gauges use stepper motors, which require power to reset the pointer to the zero position. It is completely normal for the needle to remain in its last position when the vehicle is not running. Once powered on, the gauge will automatically return to zero.
Q
Is the tachometer compatible with my vehicle?
The tachometer is designed for 12V gasoline vehicles with 4-cylinder, 6-cylinder, or 8-cylinder engines. It is not suitable for diesel engines or vehicles with a different cylinder configuration.
Q
Does the Air Fuel Ratio Gauge include an oxygen sensor?
No, the Air Fuel Ratio Gauge does not include an oxygen sensor. It is compatible with narrow band oxygen sensors with an output voltage of 0–1V. You will need to use your vehicle's existing narrow band oxygen sensor or purchase one separately.
Q
What thread size are the sensors for the Water Temp, Oil Temp, and Oil Pressure gauges?
The Water Temp Sensor, Oil Temp Sensor, and Oil Pressure Sensor all use a 1/8 ZG thread size. Please verify your vehicle's sensor port thread size before installation to ensure compatibility.
Q
What is included in the package for each gauge?
Each gauge package includes the gauge unit itself, the necessary sensor or hose (where applicable), a gauge bracket for mounting, a wiring harness, and an English instruction manual. Please refer to each product section above for the exact package contents.
Q
Are these gauges suitable for both turbo and non-turbo vehicles?
Most gauges in this set, such as the Water Temp, Oil Temp, Oil Pressure, Voltmeter, and Tachometer, are suitable for both naturally aspirated and turbocharged 12V gasoline vehicles. The Boost Gauge is specifically designed for turbocharged or supercharged vehicles that produce boost pressure.
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