A P0457 gross leak detected code is often the result of the vehicle operators not tightening the refueling cap correctly after refueling. If they are good, check the condition of the connector and wiring harness between the fuel sender and body control module. The exact resistance the computer expects varies with year, make, model and whether the fuel gage is analog or digital. If they are off, replace the fuel sender. If there is an exhaust leak. Hyundai vehicles with fuel gauge readings wrong or erratic 2012-17 Genesis Coupe 2006- 17 Sonata 2010-17 Tucson What causes erratic fuel gauge readings or wrong fuel gauge readings? Fuel sender sweep test Disconnect the fuel pump connectors and fuel lines. Posted on May 31, 2009.
Take a reading with the arm full up and fully down and compare to specs. If it is due to a failed part on the car, it should be covered under the 5 year 60000 mile warranty, but only a Hyundai dealership can tell you for certain if they will cover the repair under warranty. Most of the time though, this code is set by filling the tank with fuel and not tightening the fuel cap. The same is true for the P0455 large leak code. . Certain criteria the drive cycle must be met for the test to run and the large leak test is always run before the small leak test. When the tank is full and the float arm is at the top of its travel the variable resistor provides a low resistance.
Some owners may see an erratic or unresponsive fuel gauge or a fuel gauge that does not reach the full level after filling the fuel tank. A thorough visual inspection will often reveal loose hoses and lines. It was also the highest scoring mid-size sedan in the 2004 J. A fuel sending device is simply a float arm connected to a variable resistor. Power Initial Quality Survey in the U. This generation of Sonata adopted a European design theme, offering premium character and road presence.
The facelift of this generation, launched in 1991, was the first model to be badged with the newly revised Hyundai logo. The reading should show a rise or fall without dropouts. Here are some typical fuel sender resistance readings: 2011 and later Sonata Full 6-17Ω, ½ 70-75Ω, Warning light on 168-172Ω, Empty 198-202Ω 2006-10 Sonata Full 6-17Ω, ½ 64-68Ω, Warning light on 168-172Ω, Empty 182-202Ω 2012 and later Genesis Coup Full 12-16Ω, ½ 102-106Ω, Warning light on 185-189Ω, Empty 191-195Ω 2009 and alter Tucson Full 6-17Ω, ½ 64-68Ω, Warning light on 185-189Ω, Empty 191-195Ω If the readings are out of spec, or you find an open circuit, perform a sweep test. In addition, the Sonata Hybrid model was introduced globally on the Sonata platform in 2010. As the vehicle uses fuel and the float arm falls, resistance increases. Further, the all-new Sonata expanded its powertrain offerings with two additional eco-friendly models, including the Sonata Hybrid unveiled in 2014, and the first Sonata Plug-In Hybrid model, introduced at the North American International Auto Show in Detroit in 2015. Equipped with significantly advanced features and a top-ranked safety rating, the 5 th Generation Sonata received near universal praise from automotive media and customers alike.
The 1 st Generation started the Sonata legacy by exceeding 1 million unit sales in Korea for a single model line for the first time. Compare the readings to the resistance values below. Trust it to be accurate. Please note that a loose gas cap is not the only possible cause, but it is certainly the most likely. Remove the entire fuel pump module from the tank. A big difference is the ability of the enhanced system to monitor it's operation. .
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