Measuring Inlet Manifold Temperature
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| 所需工具 | 数量 | |
| 4C-6500 数字温度计 | 1 | |
电子控制模块 (ECM) 利用进气歧管空气温度来帮助计算空气/燃料混合气的密度。
使用 Caterpillar 电子技术（ET）监测进气歧管空气温度。 可使用 4C-6500 数字温度计确认此温度。
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| 图 1 | g06098567 |
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发动机前上视图。 (1) 进气歧管温度传感器 (2) 进气歧管螺塞。 (3) 进气歧管压力传感器 | |
为了测量进气歧管空气温度，使用 4C-6500 数字温度计。 将螺塞 (2) 从进气歧管上拆下。 将温度探针插入螺塞到位。 当发动机在满负载运转时，测量温度。
如果进气歧管空气温度太高，检查节温器阀和独立回路冷却系统。
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