9C
Fuel Sender Gauge Inspection
For M13 Engine Model
1) Remove fuel pump assembly (1) referring to Fuel Pump Removal and Installation:M13A .
2) Use an ohmmeter to confirm that resistance of sender gauge unit changes with change of float position. If the measured value is out of specification, replace.
Fuel sender gauge specifications
Float position Resistance (Ω)
Full upper “a” 91.4 mm (4.03 in.) 2 – 4
Middle (1/2) “b” 154.8 mm (6.20 in.) 29.5 – 35.5
Full lower “c” 263.5 mm (8.60 in.) 119 – 121
2. Fuel level gauge “+” terminal 4. Float
3. Fuel level gauge “–” terminal      
For K9K Engine Model
1) Remove fuel level gauge assembly referring to Fuel Level Gauge Assembly Removal and Installation:K9K .
2) Use an ohmmeter to confirm that resistance of sender gauge unit changes with change of float position. If the measured value is out of specification, replace.
Fuel sender gauge specifications
Float position Resistance (Ω)
Full upper “a” 87.2 mm (3.60 in.) 2 – 4
Middle (1/2) “b” 150.0 mm (5.91 in.) 29.5 – 35.5
Full lower “c” 254.6 mm (10.02 in.) 119 – 121
2. Fuel level gauge “+” terminal 4. Float
3. Fuel level gauge “–” terminal