Exhaust Gas Recirculation System Activity 6 PDF
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This document is an activity about the Exhaust Gas Recirculation System, detailing its purpose, components, and operation. Questions regarding the system's mechanics and a diagnostic flowchart are included.
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**ACTIVITY 6** +-----------------------------------+-----------------------------------+ | Title | EXHAUST GAS RECIRCULATION SYSTEM | +===================================+===================================+ | Description | This activity will reinf...
**ACTIVITY 6** +-----------------------------------+-----------------------------------+ | Title | EXHAUST GAS RECIRCULATION SYSTEM | +===================================+===================================+ | Description | This activity will reinforce your | | | learning in exhaust gas | | | recirculation system. | +-----------------------------------+-----------------------------------+ | Direction | 1. 2. 3. 4. | +-----------------------------------+-----------------------------------+ FORMAT Name: Course, Year & Section: **ACTIVITY 6** **EXHAUST GAS RECIRCULATION SYSTEM** 1. Explain the purpose of EXHAUST GAS RECIRCULATION SYSTEM and how it achieves the said purpose. 3 points. 2. Describe the engine operating conditions where exhaust gas recirculation is needed. 2 points. 3. Explain how the engine control system adjust to the negative effect of exhaust gas recirculation. 2 points. 4. Enumerate the components of an Exhaust Gas Recirculation System. 3 points. 5. In reference to figure 1, discuss the purpose and operation of an EGR Control Valve. 5 points. Figure 1 6. Identify the numbered parts illustrated in figure 2. 3 points.  Figure 2 7. State the purpose of the EGR Vacuum Modulator and identify where Port P, R, Q, and chamber A of the vacuum modulator are connected. 5 points. 8. In reference to figure 3, explain the operation of the EGR Vacuum Modulator when vacuum is applied to the modulator's port P (port E of throttle valve). 2 points. Figure 3 9. In reference to figure 4, explain the operation of the EGR Vacuum Modulator when vacuum is applied to the modulator's port R (port R of throttle valve). 2 points.  Figure 4 10. Describe the purpose and operation of the Vacuum Switching Valve in the EGR system. 3 points. 11. Explain the strategy used by the ECM in order to determine whether the EGR system is operating properly. 3 points. 12. Complete the diagnostic flow chart for EGR system inspection illustrated below. 7 points.
