FAULT CODE 266
Engine Fuel Temperature - Data Valid But Above Normal Operating Range - Most Severe Level
Overview
CODE | REASON | EFFECT |
Fault Code: 266 | Engine Fuel Temperature - Data Valid But Above Normal | Power derate and possible engine shutdown id engine |
PID: | Operating Range - Most Severe Level. | protection shutdown feature is enabled. |
SPN: 174 | ||
FMI: 0 | ||
LAMP: Red | ||
SRT: |
Engine Fuel Temperature Sensor 1 Circuit - Power Generation
Engines
Engine Fuel Temperature Sensor 1 Circuit - Marine En
Circuit Description
The engine fuel temperature sensor 1 is used by the engine control module (ECM) to monitor engine fuel supply temperature. The ECM monitors the voltage on the engine fuel temperature signal pin and converts this to a temperature value. The engine fuel temperature value is used by the ECM for the engine protection system.
Component Location
The engine fuel temperature sensor 1 is located on the fuel filter housing. 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 t05-266.
Last Modified: 29-Nov-2012
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