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Troubleshooting
The fuel level changes when I turn my engine on and off
The output signal from some fuel senders is proportional to the vehicle’s battery
voltage. When the engine is running this voltage is boosted by the alternator
and this can cause changes in the fuel reading.
To solve the problem:
If you will usually be checking the fuel level when the engine is running,
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calibrate the system with the engine running.
Some after-market fuel senders will not have this problem. Check if your
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local motorsport dealer has a sender with a more stable output.
The fuel level measurements are not accurate
If the fuel sender in your vehicle does not generate a good quality signal, the
G-200+ will not be able to make accurate measurements. Unfortunately many
factory senders are designed for low cost not accuracy and you may have to fit
an after-market sensor if you require better performance.
Troubleshooting
Common Problems:
I’m using a wheel sensor and the distance measurements are not
consistent / increment while stationary.
When GPS/GNSS is disabled the G-100+/200+ measures distance by counting
the pulses produced by a wheel speed sensor. Noise from other parts of your
vehicle’s electrical system can interfere with this signal and cause measure-
ment errors.
To solve the problem:
Ensure that the G100+/200+, speed sensor and any attached switches
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are all grounded directly to a ground point on the vehicle’s engine
management computer. Do not use the vehicle’s chassis.
Physically move the G-100+/200+ wiring away from other wires in your
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vehicle.
