Honda Civic erratic fuel gauge and increased fuel consumption after rust protection service on Honda Civic

Some Honda Civic owners report experiencing erratic fuel gauge readings following a rust protection service, which may include the gauge showing incorrect levels or failing to move despite fuel consumption. These issues can stem from circuit problems or sensor malfunctions, and maintenance work like rust protection may also affect the fuel tank or fuel pump, leading to inaccurate readings. Additionally, some owners notice increased fuel consumption after the service, potentially linked to engine problems that can significantly impact fuel efficiency. It is advisable for owners to have their fuel system components, including the fuel tank and pump, inspected for damage or misalignment if they suspect the rust protection service has caused these issues. Regular maintenance of the fuel system is crucial to prevent such problems, and consulting a mechanic or dealership familiar with Honda Civics is recommended for effective diagnosis and resolution.