Possible causes – Faulty Fuel tank level sensor– Fuel tank level sensor harness is open or shorted– Fuel tank level sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) MAZDA Related P1455 code 1997 MAZDA MILLENIA Fuel System, Other 1998 MAZDA MILLENIA Fuel System, Other 1999 MAZDA MILLENIA…