The Fuel Level Sensor(FLS) measures the fuel level in fuel tank and its information is used to supply the ECM with information regarding the monitoring condition of the EVAP canister purge system for leak detection. If the fuel level sensor is monitored for high or low stuck or difference between voltage of fuel level sensor and voltage deviation of fuel level sensor is exceeds limited value while driving, this is interpreted by the ECM as a fault
When the difference between actual consumed fuel and model consumed fuel is over the threshold value, ECM sets DTC P2066.
Item
Detecting Condition
Possible Cause
Case1
DTC
Strategy
Rationality check
Poor connection
Fuel Level Sensor
ECM
Enable
Conditions
Consumed fuel (model) > 11L
Threshold
Value
Consumed fuel (model) – consumed fuel (actual) > 8l
Consumed fuel (model) – consumed fuel (actual) < -12l
Diagnostic
Time
5 sec
Case2
Signal stuck
?Fuel Level Signal < 1L
continuous
MIL ON Condition
2 driving cycle
FLS
Normal Parameter
Float position
8/8
6/8
1/2
3/8
1/8
Warning Lamp ON
Sender-
Resistance(?)
4±1
16.6±1
58.2±1
71.6±1
Sub Sender-
53±1
95±1
-
Fuel volume(l)
70.5
52.5
37.5
30.0
14.5
9.5