Fuel Temperature Sensor is NTC thermister which voltage gets low if the temperature comes to be high. It is installed in fuel supplying line. It senses the temperature of fuel supplied to high pressure pump. Fuel temperature is limited (engine power is limited) to keep fuel temperature from reaching at 80℃. This limit is to protect fuel line such as high pressure pump and injectors from damages due to rapid deterioration by vapor-lock phenomenon which can occur at high temperature or destruction of oil membrane.
P0182 is set when the voltage below 172 mV - minimum voltage of FTS output - is detected for more than 2.0 sec.. This code is due to short to ground in FTS signal circuit.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage Monitoring |
•
FTS circuit
•
FTS | ||
Enable Conditions |
•
IG key ON | |||
Threshold value |
•
When output signal is below the minimum value.(below 172 mV) - - Short to ground in signal circuit. | |||
Diagnosis Time |
•
2.0 sec. | |||
Fail Safe | Fuel cut | NO |
•
Fuel temp. fixed at 80℃ | |
EGR Off | NO | |||
Fuel Limit | ON | |||
MIL | OFF | |||
Temperature (℃) | -30 | -20 | -10 | 0 | 20 | 40 | 50 | 60 | 70 |
Resistance (㏀) | 22.22 ~ 31.78 | 13.24 ~ 18.10 | 8.16 ~ 10.74 | 5.18 ~ 6.60 | 2.27 ~ 2.73 | 1.059 ~ 1.281 | 0.748 ~ 0.904 | 0.538 ~ 0.650 | 0.392 ~ 0.476 |
