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Affected by fuel pumps produced by Denso companies, Toyota and Honda have recalled defective models on a large scale, and another car company will launch a recall in China. Recently, Changan Mazda Automobile Co., Ltd. filed a recall plan with the State Administration of Market Supervision and Administration, recalling a total of 29134 vehicles from October 30, 2020.

Among them, recall a total of 26444 Mazda3 AXELA Unksera cars produced from September 13, 2018 to August 30, 2019, and 2690 CX-8 vehicles produced from October 14, 2018 to May 15, 2020.

The reason for the recall is that due to the insufficient density of the impeller (made of resin) inside the low-pressure fuel pump core of the vehicle within the recall scope, the impeller is inflated and deformed due to the influence of fuel, and interferes with the fuel pump shell and pump cover, resulting in poor operation of the low-pressure fuel pump core. In some cases, the vehicle may not be able to start or the engine will stall while the vehicle is running, and there may be hidden dangers to safety.

Based on the above failures, Changan Mazda Automobile Co., Ltd. will eliminate safety risks by authorizing dealers to replace the improved low-pressure fuel pump core for vehicles within the recall range free of charge.

It is worth mentioning that the recall is part of the recall initiated by Denso's production of faulty fuel pumps. A number of Japanese car companies have been affected by defective fuel pumps produced by Japanese auto parts giant Denso Company, CCTV Finance reported, citing Japanese media. the use of fuel pumps in this problem includes Toyota, Honda, Subaru, Mitsubishi, Mazda and other Japanese car companies.

It is understood that the defect of the fuel pump of the Denso company is caused by the imperfect forming of the impeller in the manufacturing process, and when the fuel pump is running, the impeller will be deformed, resulting in its bad work. in extreme conditions, there may be a sudden flameout of the engine while the vehicle is running, and there is a greater safety hidden danger.

In fact, fuel pumps produced by Denso have been recalled on a large scale earlier, including Subaru, Honda, Mazda, Mitsubishi and other Japanese brands.

On September 23, 2019, Changan Mazda launched a recall of 77112 domestic second-generation CX-5 vehicles produced from August 8, 2017 to July 2, 2019.

On April 10, 2020, GAC-Mitsubishi launched a recall of some of the Yige, Olander and Jinxuan cars produced between November 9, 2017 and August 30, 2019, a total of 174519 vehicles.

On April 17, 2020, a number of Toyota companies jointly filed the recall plan with the State Administration of Market Supervision and Administration, and decided to recall some imported and domestic vehicles, including Toyota Hanlanda, Camry, Prado, Crown, Lexus IS, NX, RX, etc., totaling 256644 vehicles.

On May 29th, Guangzhou Auto Honda and Dongfeng Honda respectively decided to recall 396149 and 378625 vehicles, a total of 774774 vehicles, covering almost all Honda models sold in China.

The above recalled models are all caused by the problems of the fuel pump, and the hidden danger of engine flameout is caused by the low material density of the pump core impeller of the fuel pump assembly.

In addition, in recent years, Japanese cars have frequently caused people to have trust crises again and again because of their quality or other reasons. The current Denso company, like Takata, has a very high market share in the market, the production of fuel pumps are affected greatly, and the scale of the recall is expected to be further expanded.

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