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sprinkles08
sprinkles08, ASE Certified Technician
Category: Australia Car
Satisfied Customers: 21785
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Own 2010 Prado 3.0 diesel 150 gauge and computer showing

Customer Question

Own 2010 Prado 3.0 diesel 150 gauge and computer showing quarter tank and 300 ks to go on remaining fuel but vehicle run out of fuel fill vehicle gauge only gos to bit over half a tank and 700 ks on computer fuel warning light works correctly just the computer and gauge are affected
Submitted: 1 year ago.
Category: Australia Car
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

A scan tool can be used to look at the fuel sender signal and see if it agrees with the gauge to see if the problem is with the gauge itself. It's possible that the problem could be with the gauge but it's more likely to be the fuel sender. Since it's calculating remaining distance congruent with what the gauge is showing that should rule out a gauge problem.

A wiring or connection with the fuel sender's ground or signal wire will affect it's signal. Wiring issues causing gauge accuracy issues are rare but possible, most often a wiring issue would be an open circuit which would prevent the gauge from working at all.

The most likely cause for this is an inaccurate fuel sender.

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