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通用蒸发排放控制(EVAP)测试。 对于装有更严格蒸发排放控制的1996—2001年通用公司生产的客车和卡车,检查其燃油系统的蒸发泄漏故障时也需要更为严格的测试。通常,装有更严格排放系统的上述车辆均使用汽车控制装置(PCM/TCM)作为测试工具。当满足某些条件时,就能进行蒸发泄漏测试。这些条件由所采用的控制模块在钥匙处于“启动”或“行驶”位置时,确定来自多种传感器等处的信息。每个条件即是车辆平台的具体参数。
Universal Evaporative Emission Control (EVAP) test. For buses and trucks produced by General Motors in 1996-2001 with more stringent evaporative emission controls, more rigorous testing is also required to check for evaporative leaks in the fuel system. In general, the above vehicles equipped with a more stringent exhaust system use a vehicle control device (PCM / TCM) as a test tool. Evaporative leak tests can be performed when certain conditions are met. These conditions are determined by the control module used when the key is in the “on” or “drive” position, from a variety of sensors and other information. Each condition is the specific parameters of the vehicle platform.