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john rawson
Active Member
USA
21 Posts |
 Posted - 08/26/2020 : 08:00:59 AM
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| 08 Max Force what are the most common failures for this code SPN8327, FMI7 |
Edited by - john rawson on 08/26/2020 08:51:31 AM
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RonF
Top Member
867 Posts |
Posted - 08/26/2020 : 09:29:20 AM
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quote:
Originally posted by john rawson
08 Max Force what are the most common failures for this code SPN8327, FMI7
Which Maxx Force? 7, DT, ??? |
US Army retired CMBT |
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john rawson
Active Member
USA
21 Posts |
Posted - 08/26/2020 : 09:48:06 AM
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quote:
Originally posted by RonF
quote:
Originally posted by john rawson
08 Max Force what are the most common failures for this code SPN8327, FMI7
Which Maxx Force? 7, DT, ???
Its a DT |
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RonF
Top Member
867 Posts |
Posted - 08/26/2020 : 10:17:06 AM
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1362 EGR valve internal high circuit failure
1363 EGR valve internal low circuit failure
1396 EGRV Initialization Fault
1397 EGR position in-range fault
1398 EGR position stuck in-range fault
2368 EGR valve communication fault
2391 EGR valve internal circuit failure
2392 EGR duty cycle above limit
2393 EGR position sensor fault
2394 EGR valve not receiving ECM CAN
2395 EGRH OCC self-test failed
2396 EGRL OCC self-tested failed
messages
• Private CAN circuits OPEN or short to PWR or GND
• OPEN PWR or GND circuits to EGR valve
• Failed EGR valve
I would bet on a stuck EGR vavle. |
US Army retired CMBT |
Edited by - RonF on 08/26/2020 10:21:30 AM |
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RonF
Top Member
867 Posts |
Posted - 08/26/2020 : 10:22:24 AM
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engine surfaces.
1. Using EST, open the D_ContinuousMonitor.ssn.
2. Verify sensor voltage is within KOEO specification. See “Performance Specification” section.
3. Monitor sensor voltage. Verify an active DTC for the sensor.
• If code is inactive, monitor the PID while wiggling the connector and all wires at suspected location. If
the circuit is interrupted, the PID will spike and the DTC will go active.
• If code is active, proceed to the next step.
4. Disconnect engine harness from sensor.
NOTE: Inspect connectors for damaged pins, corrosion, or loose pins. Repair if necessary.
5. Connect breakout harness to engine harness. Leave sensor disconnected.
Connector Voltage Check
Connect breakout harness between engine harness and EGR actuator. Turn ignition switch to ON. Use
DMM to measure voltage.
Test Point Spec Comment
6 to GND B+ If < B+, check ACT PWR circuit for OPEN or short to GND, or blown
fuse. Do Harness Resistance Check (page 397).
5 to 6 B+ If < B+, check ACT PWR GND circuit for OPEN. Do Harness
Resistance Check (page 397).
3 to GND 1 to 4 V The sum of 3 to GND and 4 to GND should equal 4 to 5 V.
4 to GND 1 to 4 V The sum of 4 to GND and 3 to GND should equal 4 to 5 V. |
US Army retired CMBT |
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RonF
Top Member
867 Posts |
Posted - 08/26/2020 : 10:24:26 AM
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EGR Circuit Operation
The EGR actuator receives power at Pin 6, from the ACT PWR relay Pin 87. Ground for the EGR actuator is
supplied at Pin 5, from battery ground. The ECM controls the EGR actuator through the CAN (private) circuits,
CANH, ECM E-11 to EGR Pin 4, and CANL, ECM E-10 to EGR Pin 3. |
US Army retired CMBT |
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john rawson
Active Member
USA
21 Posts |
Posted - 08/26/2020 : 12:48:59 PM
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| Thanks RonF the valve was stuck |
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08 Max Force Code 1398
