DDEC III/IV Single ECM Troubleshooting

Section 83.1 Description of Flash Code 83

Section 83.1
Description of Flash Code 83

Flash Code 83 is used to identify exhaust temperature, or external pump pressure high.‪

Flash Code 83 is used to identify EGR Delta-Pressure high, or EGR temperature high. These conditions are typically due to:‪

  • EGR valve stuck open
  • EGR valve stuck partly open

For EGR valve assembly, see Figure "EGR Exhaust-to-Rear Assembly, Series 50 Engine" , Series 50 engines. For Series 60 engines, see Figure "Delta-P Sensor and Related Parts, Series 60 Engine" .‪

Click to see this graphic in a separate window

 1. PWM Valve Assembly‪

 6. Coolant Lines‪

 2. EGR Temperature Sensor‪

 7. Bracket‪

 3. EGR Pressure Sensor‪

 8. Pressure Sensor Connection/Hoses‪

 4. EGR Cooler‪

 9. Bolts‪

 5. Clamps‪

Figure 1. EGR Exhaust-to-Rear Assembly, Series 50 Engine

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 1. Delta-P Sensor‪

 8. Clip‪

 2. Stud‪

 9. Delta-P Tube‪

 3. Isolator‪

10. Nut‪

 4. Hose Clamp‪

11. Bracket‪

 5. Delta-P Tube‪

12. Thermostat Housing‪

 6. Nut‪

13. Bolt‪

 7. Delivery Pipe‪

Figure 2. Delta-P Sensor and Related Parts, Series 60 Engine


DDEC III/IV Single ECM Troubleshooting Guide - 6SE497
Generated on 10-13-2008

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