Fuel level in the tank
The fuel level sender in the tank — the very float the gauge needle is drawn from. It rarely lies about anything important for the engine, but without a correct level the car cannot test the vapour system, which means it is not ready for the emissions test.
4 codes in this section, 4 with a guide
What it usually turns out to be
- The needle did not move after twenty litres — the float has stuck.
- A jump from 20 % straight to 90 % means the track is worn in the middle.
- The needle disagreeing with your arithmetic on the last quarter is normal, not a code.
P0460Fuel level sensor — malfunctionguideP0461Fuel level sensor — reading out of rangeguideP0462Fuel level sensor — low signalguideP0463Fuel level sensor — high signalguide
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Other sections
Fuel and air metering, general 33Intake measuring sensors 17Oxygen sensors 19Throttle and accelerator pedal 15Mixture: lean and rich 11Fuel and air metering: injectors 25Ignition system and misfires 29Exhaust gas recirculation (EGR) 7Secondary air injection 3Catalytic converter 4Canister and purge valves 9Fuel vapour leaks 7Diesel particulate filter 6Idle and auxiliary systems 22Control module and its circuits 21Transmission 17Communication between modules 20Brakes, ABS and stability control 17Body, airbags and lighting 12