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CUMMINS FAULT CODE 261

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FAULT CODE 261

Engine Fuel Temperature - Data Valid But Above Normal Operating Range - Moderately Severe Level

Overview


CODE

REASON

EFFECT

Fault Code: 261

Engine Fuel Temperature - Data Valid But Above Normal Operating Range -

Calibration dependent progressive power

PID:

Moderately Severe Level. Engine fuel temperature signal indicates engine

and speed derate and engine shutdown with

SPN: 174

fuel temperature is above engine protection warning limit.

increasing time after alert.

FMI: 16



LAMP: Amber



SRT:



Engine Fuel Temperature Sensor 1 Circuit - Power Generation

Engines


Engine Fuel Temperature Sensor 1 Circuit - Marine En


Circuit Description


The engine fuel temperature 1 sensor is used by the engine control module (ECM) to monitor engine fuel supply temperature. The ECM monitors the voltage on the fuel supply temperature SIGNAL pin and converts this to a temperature value. The fuel supply temperature value is used by the ECM for the engine protection system.

Component Location


The engine fuel temperature 1 sensor is located above the second-stage filter head. Use the following procedure for a detailed component location view. Refer to Procedure 100-002 in Section E.


Shop Talk


All Temperature Sensors


  • The resistance of the sensor varies with the temperature. If the sensor is operating properly, the observed reading will be comparable to the values in the following table.


Temperature (°C)

Temperature (°F)

Resistance (ohms)

0

32

30k to 36k

25

77

9k to 11k

50

122

3k to 4k

75

167

1350 to 1500

100

212

600 to 675

Refer to Troubleshooting Fault Code t05-261.


Last Modified: 29-Nov-2012

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