Diagnostic Aids

• Verify that the fuel level is in the same range as the customer concern.
• For intermittent diagnosis, refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS .
• The Fuel Tank Level Remaining parameter is available on the scan tool in the PCM Enhanced EVAP Data list. Use the fuel level sensor resistance to verify the fuel level sensor operation.

When the fuel tank is empty, the fuel level sensor resistance is approximately 40 ohms. When the fuel tank is full, the fuel level sensor resistance is approximately 250 ohms.