MBE 900 & MBE 4000 EGR

Section 7.2 Problem Engine Operation Snapshots

Section 7.2
Problem Engine Operation Snapshots

It is important to understand what a typical snapshot looks like during engine operation with a problem. In this section, some abnormal engine running conditions are illustrated.‪

Review these snapshots for examples of various types of engine operation problems.‪

Section 7.2.1
ENGINE WITH NO EGR TEMPERATURE READING

If an engine runs with no EGR temperature reading, such as a bad EGR temperature sensor or open EGR temperature circuit; then there will be no value for EGR temperature after cooler. See Figure "MBE 900 Engine Running with No EGR Temperature Reading — Diagnostic Instrumentation Window" and Figure "MBE 900 Engine Running with No EGR Temperature Reading — Graph Window" for an MBE 900 engine with no EGR temperature reading.‪

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Figure 1. MBE 900 Engine Running with No EGR Temperature Reading — Diagnostic Instrumentation Window

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Figure 2. MBE 900 Engine Running with No EGR Temperature Reading — Graph Window

Section 7.2.2
ENGINE WITH ABOVE NORMAL EGR TEMPERATURE READINGS

If an engine runs with above normal EGR temperature reading, such as a bad EGR temperature sensor or open EGR temperature circuit; then the fault description, fault ID (SID or PID), and FMI will appear in the fault codes window. See Figure "MBE 900 Engine Running with Above Normal EGR Temperature — Fault Codes Window" .‪

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Figure 3. MBE 900 Engine Running with Above Normal EGR Temperature — Fault Codes Window


MBE 900 and MBE 4000 EGR Technician's Manual - 7SE940
Generated on 10-13-2008

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