1219-10.pdf - delta-p sensor - ddcsn.com · 18. measure the resistance between pins 1 and 2 of the...

1 12 19-10

SUBJECT DATE

SPN 411/FMIs 0, 1, 2, 3, 4, 13 December, 2010

Additions, Revisions, or Updates

Publication Number / Title Platform Section Title Change

DDC-SVC-MAN-0084

DD

SPN 411/FMI 0

Recalibaration procedure added to the EGR delta-P replacementprocedure.

SPN 411/FMI 1

SPN 411/FMI 2

SPN 411/FMI 3

SPN 411/FMI 4

SPN 411/FMI 13

Delta-P Sensor

DDC-SVC-MAN-0083DD15 and

DD16

Removal of the DD15 andDD16 Exhaust GasRecirculation Valve

Added a step to perform a delta P sensor re-calibration routine.

12 19-10

All information subject to change without notice. 312 19-10 Copyright © 2011 DETROIT DIESEL CORPORATION

2 SPN 411/FMI 0 - EPA07

This diagnostic is typically Exhaust Gas Recirculation (EGR) delta P pressure is too high at low speeds and loads.

1. Turn the ignition ON (key ON, engine OFF).2. Using DDDL/DDRS monitor EGR delta P voltage (pin 109).3. Is the EGR delta P voltage between 0.55 and 0.83 volts?

a. Yes; Go to step 6.b. No; Go to step 4.

4. Remove the EGR delta P sensor from the mounting pad, leave electrical harness connected. Refer to section "Removalof the Delta P Sensor"

5. Is the EGR delta P voltage between 0.55 and 0.83 volts?a. Yes; Go to step 6.b. No; Go to step 15.

6. Inspect the EGR delivery pipe delta P pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor, Go to step 22.b. If no blockage is found, Go to step 7.

7. Disconnect the EGR delta P sensor harness connector.8. Inspect the EGR delta P sensor harness connector for loose, bent, spread or corroded pins.

a. If pin damage is found, repair as necessary.b. If no damage is found, Go to step 9.

9. Inspect the EGR valve for physical damage such as a broken butterfly.a. If EGR valve is damaged, replace the EGR valve. Then Go to step 22.

For the DD13: Refer to section "Removal of the Exhaust Manifold"For the DD15 and DD16: Refer to section "Removal of the DD15 and DD16 Exhaust Gas Recirculation Valve"

b. If no damage is found, Go to step 10.10. Disconnect the MCM 120–pin connector.11. Measure the resistance between pins 1 and 2 of the EGR delta P sensor harness connector.

a. If the resistance is greater than 5 ohms, Go to step 12.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 117 of the MCM 120–pin connector. Go

to step 22.12. Measure the resistance between pins 2 and 3 of the EGR delta P sensor harness connector.

a. If the resistance is greater than 5 ohms. Go to step 13.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 109 of the MCM 120–pin connector. Go

to step 22.13. Measure the resistance between pin 1 of the EGR delta P sensor harness connector and ground.

a. If the resistance is greater than 3 ohms, Go to step 14.b. If the resistance is less than 3 ohms, repair the short circuit between pin 1 of the EGR delta P sensor harness connector

and ground. Go to step 22.14. Measure the resistance between pin 3 of the EGR delta P sensor harness connector and ground.

a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, call the Detroit DieselCustomer Support Center (313–592–5800).

b. If the resistance is less than 3 ohms, repair the short circuit between pin 3 of the EGR delta P sensor harness connectorand ground. Go to step 22.



17. Disconnect the MCM 120–pin connector.

2 SPN 411/FMI 0 - EPA07

4 All information subject to change without notice.Copyright © 2011 DETROIT DIESEL CORPORATION 12 19-10

18. Measure the resistance between pins 1 and 2 of the EGR delta P sensor.a. If the resistance is greater than 5 ohms, Go to step 19.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 117 of the MCM 120–pin connector. Go

to step 22.19. Measure the resistance between pins 2 and 3 of the EGR delta P sensor.


to step 22.20. Measure the resistance between pin 1 of the EGR delta P sensor and ground.


and ground. Go to step 22.21. Measure the resistance between pin 3 of the EGR delta P sensor and ground.

a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, replace the EGR deltaP sensor. Refer to section "Removal of the Delta P Sensor" After sensor replacement, perform EGR Delta P sensorre-calibration service routine. Go to step 22.


22. What is the MCM software version?a. V11.4 or lower, reprogram the MCM to the latest software version.b. V13.2 or higher, repair is complete.

12 19-10


3 SPN 411/FMI 1 - EPA07

This diagnostic is typically the Exhaust Gas Recirculation (EGR) delta pressure is too low at high speeds and loads.


a. Yes, Go to step 6.b. No, Go to step 4.

4. Remove the EGR delta P sensor from the mounting pad, leave electrical harness connected. Refer to section "Removalof the Delta P Sensor"

5. Is the EGR delta P voltage between 0.55 and 0.83 volts?a. Yes, Go to step 6.b. No, Go to step 17.

6. Inspect the EGR delivery pipe delta P pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor, Go to step 24.b. If no damage is found, Go to step 7.

7. Remove EGR cooler hot pipe, EGR crossover tube and mixer pipe and inspect for excessive build up or blockage.Refer to section "Removal of the Exhaust Gas Recirculation Hot Pipe"Refer to section "Removal of the Exhaust Gas Recirculation Crossover Tube"Refer to section "Removal of the Mixer pipe"

a. If excessive build up or blockage is found, clean piping and replace EGR cooler. Then Go to step 24.For the DD13: Refer to section "Removal of the DD13 Exhaust Gas Recirculation Cooler Water Manifold Assembly"For the DD15 and DD16: Refer to section "Removal of the DD15 and DD16 Exhaust Gas Recirculation Cooler"

b. If there is no excessive build up or blockage, Go to step 8.8. Disconnect the EGR delta P sensor harness connector.9. Inspect the EGR delta P sensor harness connector for loose, bent, spread or corroded pins.


10. Visually inspect the EGR system for leaks, obstructions, loose clamps or damage.a. If damage is found, repair as necessary. Go to step 24.b. If no damage is found, Go to step 11.

11. Inspect the EGR valve for physical damage such as a broken butterfly.a. If EGR valve is damaged, replace the EGR valve. Go to step 24.


b. If no damage is found, Go to step 12.12. Disconnect the Motor Control Module (MCM) 120–pin connector.13. Measure the resistance between pins 1 and 2 of the EGR delta P sensor connector.


to step 24.14. Measure the resistance between pins 2 and 3 of the EGR delta P sensor connector.


to step 24.15. Measure the resistance between pin 1 of the EGR delta P sensor connector and ground.

a. If the resistance is greater than 3 ohms, Go to step 16.

3 SPN 411/FMI 1 - EPA07


b. If the resistance is less than 3 ohms , repair the short circuit between pin 1 of the EGR delta P sensor harness connectorand ground. Go to step 24.

16. Measure the resistance between pin 3 of the EGR delta P sensor connector and ground.a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, call the Detroit Diesel

Customer Support Center (313–592–5800).b. If the resistance is less than 3 ohms, repair the short circuit between pin 3 of the EGR delta P sensor harness connector

and ground. Go to step 24.17. Disconnect the EGR delta P sensor harness connector.18. Inspect the EGR delta P sensor harness connector for loose, bent, spread or corroded pins.


19. Disconnect the MCM 120–pin connector.20. Measure the resistance between pins 1 and 2 of the EGR delta P sensor.


to step 24.21. Measure the resistance between pins 2 and 3 of the EGR delta P sensor.


to step 24.22. Measure the resistance between pin 1 of the EGR delta P sensor and ground.


and ground. Go to step 24.23. Measure the resistance between pin 3 of the EGR delta P sensor and ground.

a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, replace the EGR deltaP sensor. Refer to section "Removal of the Delta P Sensor" After sensor replacement, perform EGR delta P sensorre-calibration service routine. Go to step 24.


24. What is the MCM software version?a. V11.4 or lower, reprogram the MCM to the latest software version.b. V13.2 or higher, repair is complete.

12 19-10


4 SPN 411/FMI 3 - EPA07

This diagnosis is typically Exhaust Gas Recirculation (EGR) delta P sensor circuit failed high.



4. Remove the EGR delta P sensor from the mounting pad, leave electrical harness connected.5. Is the EGR delta P voltage between 0.55 and 0.83 volts?


6. Inspect the EGR Delivery pipe delta P pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor.b. If no blockage is found, Go to step 7.



9. Disconnect the Motor Control Module (MCM) 120–pin connector.10. Measure the resistance between pins 1 and 2 of the EGR delta P sensor.

a. If the resistance is greater than 5 ohms, Go to step 11.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 117 of the MCM 120–pin connector.

11. Measure the resistance between pins 2 and 3 of the EGR delta P sensor.a. If the resistance is greater than 5 ohms, Go to step 12.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 109 of the MCM 120–pin connector.

12. Measure the resistance between pin 1 of the EGR delta P sensor and ground.a. If the resistance is greater than 3 ohms, Go to step 13.b. If the resistance is less than 3 ohms, repair the short circuit between pin 1 of the EGR delta P sensor harness connector

and ground.

4 SPN 411/FMI 3 - EPA07


13. Measure the resistance between pin 3 of the EGR delta P sensor and ground.a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, call the Detroit Diesel


and ground.14. Disconnect the EGR delta P sensor harness connector.15. Inspect the EGR delta P sensor harness connector for loose, bent, spread or corroded pins.






and ground.20. Measure the resistance between pin 3 of the EGR delta P sensor and ground.

a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, replace the EGR deltaP sensor. Refer to section "Removal of the Delta P Sensor" After sensor replacement, perform EGR Delta P sensorre-calibration service routine.

b. If the resistance is less than 3 ohms, repair the short circuit between pin 3 of the EGR delta P sensor harness connectorand ground.

12 19-10


5 SPN 411/FMI 4 - EPA07

This diagnosis is typically Exhaust Gas Recirculation (EGR) delta P sensor short to ground.



4. Remove the EGR delta P sensor from the mounting pad, leave electrical harness connected.5. Is the EGR delta P voltage between 0.55 and 0.83 volts?


6. Inspect the EGR delivery pipe delta P pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor.b. If no blockage is found, Go to step 7.



9. Disconnect the Motor Control Module (MCM) 120–pin connector.10. Measure the resistance between pins 1 and 2 of the EGR delta P sensor.




and ground.

5 SPN 411/FMI 4 - EPA07


13. Measure the resistance between pin 3 of the EGR delta P sensor and ground.a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, call the Detroit Diesel


and ground.14. Disconnect the EGR delta P sensor harness connector.15. Inspect the EGR delta P sensor harness connector for loose, bent, spread or corroded pins.






and ground.20. Measure the resistance between pin 3 of the EGR delta P sensor and ground.



12 19-10


6 SPN 411/FMI 0 - EPA10

This diagnosis is typically the Exhaust Gas Recirculation (EGR) delta pressure is too high at low speeds and loads.

SPN 411/FMI 0

Description EGR Differential Pressure Too High (Low Box)

Monitored Parameter EGR delta Pressure Sensor

Typical Enabling Conditions Start with engine off, idle speed < 900 RPM, coolant temperature >65C, DPF zone 0.

Monitor Sequence none

Execution Frequency Once per drive cycle.

Typical Duration 20

Dash Lamps MIL, CEL

Engine Reaction Derate 25%

Verification Shut engine off if it is running. Start engine and warm it up by drivingthe vehicle such that coolant temperature > 65C, then let vehicle idlefor > 5 minutes at < 900 RPM.

1. Turn the ignition ON (key ON, engine OFF).2. Using DDDL/DDRS monitor EGR delta p voltage (pin 109).3. Is the EGR delta p voltage between 0.55 and 0.83 volts?


4. Remove the EGR delta p sensor from the mounting pad, leave electrical harness connected. Refer to section "Removal ofthe Delta P Sensor"

5. Is the EGR delta p voltage between 0.55 and 0.83 volts?a. Yes; Go to step 6.b. No; Go to step 15.

6. Inspect the EGR venturi pipe delta p pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor.

Refer to section "Cleaning of the Exhaust Gas Recirculation Venturi Pipe Delta P Sensor Ports"Refer to section "Installation of the Delta P Sensor"

b. If no blockage is found, Go to step 7.7. Disconnect the EGR delta p sensor harness connector.8. Inspect the EGR delta p sensor harness connector for loose, bent, spread or corroded pins.


9. Inspect the EGR valve for physical damage such as a broken butterfly.a. If EGR valve is damaged, replace the EGR valve.


b. If no damage is found, Go to step 10.10. Disconnect the Motor Control Module (MCM) 2 120–pin connector.11. Measure the resistance between pins 1 and 2 of the EGR delta P sensor harness connector.

a. If the resistance is greater than 5 ohms, Go to step 12.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 117 of the MCM2 120–pin connector.

12. Measure the resistance between pins 2 and 3 of the EGR delta P sensor harness connector.a. If the resistance is greater than 5 ohms, Go to step 13.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 109 of the MCM2 120–pin connector.

6 SPN 411/FMI 0 - EPA10


13. Measure the resistance between pin 1 of the EGR delta P sensor harness connector and ground.a. If the resistance is greater than 3 ohms, Go to step 14.b. If the resistance is less than 3 ohms, repair the short circuit between pin 1 of the EGR delta p sensor harness connector

and ground.14. Measure the resistance between pin 3 of the EGR delta P sensor harness connector and ground.


b. If the resistance is less than 3 ohms, repair the short circuit between pin 3 of the EGR delta p sensor harness connectorand ground.

15. Disconnect the EGR delta p sensor harness connector.16. Inspect the EGR delta p sensor harness connector for loose, bent, spread or corroded pins.


17. Disconnect the MCM2 120–pin connector.18. Measure the resistance between pins 1 and 2 of the EGR delta p sensor.


19. Measure the resistance between pins 2 and 3 of the EGR delta p sensor.a. If the resistance is greater than 5 ohms, Go to step 20.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 109 of the MCM2 120–pin connector.

20. Measure the resistance between pin 1 of the EGR delta p sensor and ground.a. If the resistance is greater than 3 ohms, Go to step 21.b. If the resistance is less than 3 ohms, repair the short circuit between pin 1 of the EGR delta p sensor harness connector

and ground.21. Measure the resistance between pin 3 of the EGR delta p sensor and ground.

a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, replace the EGR deltap sensor. Refer to section "Removal of the Delta P Sensor" After sensor replacement, perform EGR delta P sensorre-calibration service routine.


12 19-10


7 SPN 411/FMI 1 - EPA10

This code is typically the Exhaust Gas Reicrculation (EGR) delta pressure is too low at high speeds and loads.

SPN 411/FMI 1

Description EGR Differential Pressure Too Low (High Box)

Monitored Parameter EGR Delta Pressure Sensor

Typical Enabling Conditions Engine running > 5 minutes, engine speed 1100-1850 RPM, enginetorque 1400-2800 N·m, engine not in regeneration mode, engine mustbe in steady-state mode, intake manifold temperature > 0C, desiredEGR position > 30%, coolant temperature > 65C, ambient temperature> -8C ambient, barometric pressure > 755 mbar.

Monitor Sequence none

Execution Frequency Always enabled.

Typical Duration 5

Dash Lamps MIL, CEL


Verification Start engine, warm up such that coolant temperature > 65C, insureengine is not in regeneration mode, insure ambient temperature > -8Cambient and ambient barometric pressure > 755 mbar




5. Is the EGR delta p voltage between 0.55 and 0.83 volts?a. Yes, Go to step 6.b. No, Go to step 17.

6. Inspect the EGR delivery pipe delta p pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor.


b. If no damage is found, Go to step 7.7. Remove EGR cooler hot pipe, EGR crossover tube and mixer pipe and inspect for excessive build up or blockage.

Refer to section "Removal of the Exhaust Gas Recirculation Hot Pipe"Refer to section "Removal of the Exhaust Gas Recirculation Crossover Tube"Refer to section "Removal of the Mixer pipe"

a. If excessive build up or blockage is found, clean piping and replace EGR cooler.For the DD13: Refer to section "Removal of the DD13 Exhaust Gas Recirculation Cooler Water Manifold Assembly"For the DD15 and DD16: Refer to section "Removal of the DD15 and DD16 Exhaust Gas Recirculation Cooler"

b. If there is no excessive build up or blockage, Go to step 8.8. Disconnect the EGR delta p sensor harness connector.9. Inspect the EGR delta p sensor harness connector for loose, bent, spread or corroded pins.


10. Visually inspect the EGR system for leaks, obstructions, loose clamps or damage.a. If damage is found, repair as necessary.

7 SPN 411/FMI 1 - EPA10


b. If no damage is found, Go to step 11.11. Inspect the EGR valve for physical damage such as broken butterfly.

a. If EGR valve is damaged, replace the EGR valve.For the DD13: Refer to section "Removal of the Exhaust Manifold"For the DD15 and DD16: Refer to section "Removal of the DD15 and DD16 Exhaust Gas Recirculation Valve"

b. If no damage is found, Go to step 12.12. Disconnect the Motor Control Module (MCM)2 120–pin connector.13. Measure the resistance between pins 1 and 2 of the EGR delta p sensor.
















12 19-10


8 SPN 411/FMI 2 - EPA10

This diagnosis is typically a Exhaust Gas Recirculation (EGR) delta p sensor is out of calibration.

SPN 411/FMI 2

Description EGR delta Pressure Sensor Out Of Calibration

Monitored Parameter EGR delta Pressure

Typical Enabling Conditions Coolant Temperature > 176F

Monitor Sequence None

Execution Frequency Continuous when enabling conditions met

Typical Duration 15 seconds

Dash Lamps MIL, CEL


Verification Coolant Temperature > 176F, then engine off for 15 seconds, then KeyON





6. Inspect the EGR Delivery pipe delta p pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor. Refer to section "Cleaning

of the Exhaust Gas Recirculation Venturi Pipe Delta P Sensor Ports"b. If no blockage is found, Go to step 7.

7. Disconnect the EGR delta p sensor harness connector.

8 SPN 411/FMI 2 - EPA10


8. Inspect the EGR delta p sensor harness connector for loose, bent, spread or corroded pins.a. If pin damage is found, repair as necessary.b. If no damage is found, Go to step 9.

9. Disconnect the Motor Control Module (MCM2) 120–pin connector.10. Measure the resistance between pins 1 and 2 of the EGR delta p sensor.














a. If the resistance is greater than 3 ohms, repeat the previous steps. If the results are the same, replace the EGR deltap sensor. Refer to section "Removal of the Delta P Sensor" After sensor replacement, perform EGR delta P sensorre-calibration service routine.


12 19-10


9 SPN 411/FMI 3 - EPA10

This diagnosis is typically Exhaust Gas Recirculation (EGR) delta p sensor circuit failed high.

SPN 411/FMI 3

Description EGR Delta Pressure Sensor Circuit High


Typical Enabling Conditions Always Enabled


Execution Frequency Always Enabled

Typical Duration 2 Seconds

Dash Lamps MIL, CEL


Verification Engine Idle (1 minute)





6. Inspect the EGR venturi pipe's delta p pressure ports for blockage.a. If excessive build up or blockage is found, clean the venture pipe and reinstall the sensor.




9. Disconnect the Motor Control Module (MCM)2 120–pin connector.10. Measure the resistance between pins 1 and 2 of the EGR delta p sensor.






9 SPN 411/FMI 3 - EPA10












12 19-10


10 SPN 411/FMI 4 - EPA10

This diagnosis is typically Exhaust Gas Recirculation (EGR) delta p sensor short to ground.

SPN 411/FMI 4

Description EGR Delta Pressure Sensor Circuit Low


Typical Enabling Conditions Always Enabled


Execution Frequency Always Enabled

Typical Duration 2 Seconds

Dash Lamps MIL, CEL


Verification Engine Idle (1 minute)





6. Inspect the EGR Delivery pipe delta p pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor.




9. Disconnect the Motor Control Module (MCM)2 120–pin connector.10. Measure the resistance between pins 1 and 2 of the EGR delta p sensor.

a. If the resistance is greater than 5 ohms , Go to step 11.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 117 of the MCM2 120–pin connector.





10 SPN 411/FMI 4 - EPA10












12 19-10


11 SPN 411/FMI 13 - ALL YEARS

This diagnosis is typically Exhaust Gas Recirculation (EGR) delta P sensor out of calibration.

SPN 411/FMI 13

Description EGR delta Pressure Sensor Out Of Calibration

Monitored Parameter EGR delta Pressure

Typical Enabling Conditions Coolant Temperature > 176F


Execution Frequency Continuous when enabling conditions met

Typical Duration 15 seconds

Dash Lamps MIL, CEL


Verification Coolant Temperature > 176F, then engine off for 15 seconds, then KeyON

1. Turn the ignition ON (key ON, engine OFF).2. Using DDDL/DDRS, monitor EGR delta P voltage (pin 109).3. Is the EGR delta P voltage between 0.55 and 0.83 volts?


4. Remove the EGR delta P sensor from the mounting pad; leave electrical harness connected.5. Is the EGR delta P voltage between 0.55 and 0.83 volts?


6. Inspect the EGR delivery pipe delta P pressure ports for blockage.a. If excessive build up or blockage is found, clean the venturi pipe and reinstall the sensor.b. If no blockage is found, Go to step 7.


11 SPN 411/FMI 13 - ALL YEARS



9. Disconnect the Motor Control Module (MCM) 120–pin connector.10. Measure the resistance between pins 1 and 2 of the EGR delta P sensor connector on the engine sensor harness.


11. Measure the resistance between pins 2 and 3 of the EGR delta P sensor connector on the engine sensor harness.a. If the resistance is greater than 5 ohms,Go to step 12.b. If the resistance is less than 5 ohms, repair the short between pins 103 and 109 of the MCM 120–pin connector.

12. Measure the resistance between pin 1 of the EGR delta P sensor connector on the engine sensor harness and ground.a. If the resistance is greater than 3 ohms, Go to step 13.b. If the resistance is less than 3 ohms, repair the short circuit between pin 1 of the EGR delta P sensor harness connector

and ground.13. Measure the resistance between pin 3 of the EGR delta P sensor connector on the engine sensor harness and ground.

a. If the resistance is greater than 3 ohms, repeat the previous steps (Go back to Step 1). If the results are the same,call the Detroit Diesel Customer Support Center (313–592–5800).




16. Disconnect the MCM 120–pin connector.17. Measure the resistance between pins 1 and 2 of the EGR delta P sensor connector on the engine sensor harness.


18. Measure the resistance between pins 2 and 3 of the EGR delta P sensor connector on the engine sensor harness.a. If the resistance is greater than 5 ohms, Go to step 19.b. If the resistance is less than 5 ohms, repair the short circuit between pin 103 and 109 of the MCM 120-pin connector.

19. Measure the resistance between pin 1 of the EGR delta P sensor connector on the engine sensor harness and ground.a. If the resistance is greater than 3 ohms, Go to step 20.b. If the resistance is less than 3 ohms, repair the short between pin 1 of the EGR delta P sensor harness connector and

ground.20. Measure the resistance between pin 3 of the EGR delta P sensor connector on the engine sensor harness and ground.

a. If the resistance is greater than 3 ohms, repeat the previous steps; Go to step 1. If the results are the same, replacethe EGR delta P sensor. Refer to section "Removal of the Delta P Sensor" After sensor replacement, perform EGRdelta P sensor re-calibration service routine.


12 19-10


12 Removal of the DD15 and DD16 Exhaust Gas Recirculation Valve

Remove as follows:

1. Remove the hot pipe and the gaskets from the Exhaust Gas Recirculation (EGR) cooler and the EGR valve. Discard thegaskets (if applicable) and spherical clamps. Refer to section "Removal of the Exhaust Gas Recirculation Hot Pipe"

2. Remove the nut from the EGR actuator linkage and then remove the linkage.3. Remove the four nuts from the EGR valve studs and remove the EGR valve.4. Remove the EGR valve gasket and discard.5. After sensor installation, perform EGR delta P re-calibration service routine.

12 Removal of the DD15 and DD16 Exhaust Gas Recirculation Valve


1219-10.pdf - delta-p sensor - ddcsn.com · 18. measure the resistance between pins 1 and 2 of the...

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