This condition is typically temperature too high from the turbo outlet.
91.3.1
Turbocharger Check
Check as follows:
1. Inspect the turbocharger outlet plumbing and charge air cleaner for blockage, leaks
or cracks. Repair as necessary
2. Turn the ignition ON (key ON, engine OFF).
3. Perform the turbo hysterisis test.
[a] If the test fails, replace the turbo actuator. Refer to section 91.3.1.1.
[b] If the test is a pass, go to step 4.
4. Disconnect the Turbo Compressor Out Temperature Sensor.
[a] Inspect the connectors for damage, corrosion, spread or bent pins. Repair as
necessary. Refer to section 91.3.1.1.
[b] If the connectors are OK, replace the Turbo Out Temperature Sensor. Refer to section 91.3.1.1.
91.3.1.1 Verify Repairs
Verify repairs as follows:
1. Turn ignition OFF.
2. Reconnect any electrical connections that were disconnected to perform the diagnosis.
3. Clear codes with DDDL 7.0 or latest version.
4. Start and bring engine up to operating temperature (over 140°F/60°C).
5. Verify operation is satisfactory and no warning lamps illuminate. If warning lamps
illuminate, troubleshoot the codes. If assistance is required, call the Detroit Diesel
Customer Support Center at 313–592–5800.
