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