CUMMINS N14 - Engine Acceleration;Response Poor

Engine Acceleration/Response Poor
Cause Corrections
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Verify the Complaint, On Highway - Road
Test the Vehicle Using a Loaded Trailer.
Measure the Response Time
OK
f
Refer to Driveability/Low Power Customer
Complaint Form at the end of this section.
Refer to Procedure 5-23 (PT Fuel System)
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Parameters Set Incorrectly:
• Road Speed Governor Calibration Incorrect
• Gear Down Protection or Progressive
Shifting Settings Incorrect
OK
f
Measure and check the following:
• Road speed governor operation. Check
road speed governor. Refer to Compulink™
Cartridge Manual, Bulletin No. 3810443.
• Engine speed with verified tachometer.
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Turbocharger Incorrect
OK
f
Check for correct turbocharger in-
stalled. Refer to Procedure 3-03.
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PT Fuel Pump ASA Valve Incorrect
OK
f
Visually check for correct ASA valve
installed if applicable.
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Vehicle Drivetrain Not Properly
Matched to Engine
OK
f
Review specification of engine/drivetrain
components.
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For CELECT™ Engines:
• Active Electronic Fault Codes
• High Counts of Inactive Fault Codes
• Throttle Sensor Malfunctioning
• Programmable Parameters Improperly Set
• Engine Protection Fault Inactive
• ECM Calibration Incorrect
OK
f
Refer to N14 CELECT™ System Trouble-
shooting and Repair Manual, Bulletin No.
3810469. Compulink™ required.
(Continued)
Troubleshooting Symptoms Charts SectionT-Troubleshooting
N14Page T-22