P0460

Test 1 - 2:

Test 3 - 7:

SYMPTOM
P0460-FUEL LEVEL UNIT NO CHANGE OVER MILES

WHEN MONITORED
TEST # 1: With the ignition on, the fuel level is compared to the previous key down after a 20 second delay. TEST # 2: The PCM monitor the fuel level at ignition on.

SET CONDITION
TEST # 1: If the PCM does not see a difference in fuel level of greater than 0.1 volt the test will fail. TEST # 2: If the PCM does not see a change in the fuel level of 0.1765 over a set amount of miles the test will fail. See Charts and Graphs (Fuel Level Voltage Change Over Miles Chart) for an example.

POSSIBLE CAUSES
- Good trip equal to zero
- Visually inspect fuel tank
- (G4) fuel level sensor signal circuit shorted to ground
- (G4) fuel level sensor signal circuit open
- (Z211) ground circuit open
- Internal inspection of the fuel tank
- Fuel level sensor