三元催化转换器堵塞的诊断技巧及实例分析

Diagnostic Skills and Cases Analysis on Blocking of TWC

采用三元催化转换器(TWC)是减少车辆排放的有效措施之一。但车辆由于日常使用、维护不当,经常导致三元催化转换器堵塞。本文详细介绍TWC堵塞的原因、症状,并提出检修的各种方法,最后,通过实例加以论证。

Three-way catalytic converter(TWC)is to reduce vehicle emission one of the effective measures.However, because of rough usage or improper maintenance in the day-to-day of vehicle,and often leads to TWC block.The cause, symptoms and the diagnostic skills on blocking of TWC are introduced in the paper.Some cases of fault diagnosis are presented finally.