![]() For more information on the exhaust fuel addition injector and TOYOTA D-CAT*1, refer to the following procedures (See page Нажмите здесь).As a result, NOx in the exhaust gas will be reduced in response to the RICH air-fuel ratio. ![]() In the other control, the injector helps the air-fuel ratio become RICH. Under the DPNR catalyst regeneration control, the injector adds fuel to raise a catalyst temperature. This injector is used for two different controls: DPNR catalyst regeneration and nitrogen oxide (NOx) reduction. This injector adds fuel by a control signal from the ECM. ![]() The exhaust fuel addition injector is mounted on the exhaust port of the cylinder head, and low pressure is provided to the injector by the feed pump in the supply pump.
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