Could it be due to a bad gas cap? Iif you soleved the problem, can you please tell me what you did? Symptoms for this error code depend on the severity of the problem. I have a P0460 code and thinking the same I dropped the tank and replaced the sender unit making fuel tanks for Ford made me know enough to be dangerous. The light is on when the computer has a problem that will affect emissions or performance. Iif you soleved the problem, can you please tell me what you did? You should also check that the spark plug gap is set properly. Could this fact adversely effect the test? Look for the flexible fuel badge on the vehicle. Trying to diagnose this code with a low or too high fuel level can lead to misdiagnoses and hours of wasted time. If gas gauge goes from zero to full or over full you need a new flexible fuel sensor.
Make repairs or replace wiring as required to ensure that all readings fall within specifications, clear all codes, and retest the system to see if the code returns. Any damage to the movable arm, for instance, barely noticeable bending or deformation of the arm could cause wildly inaccurate fuel level readings. You would need to have the computer scanned for trouble codes then fix the problem. The fuel level sensor consists of two parts, one is mechanical float and the other side is variable resistor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. Fuel level sensor output voltage changes depending on the movement of the fuel mechanical float. Always consult the manual on the correct and safest procedure to remove the fuel tank, or on how to gain access to the sender unit by removing seats and other items such as carpets.
If the light comes back on and the code is the same, you will need a Ford dealer or a repair facility that is up on it's electrical testing. Are you a Ford Ranger fan? This signal will either go straight to the fuel pump computer module, or to the instrument cluster module. While an aftermarket sender unit may fit the application, it often happens that the resistance rating of an aftermarket unit does not match the specifications of the application it is fitted to, which could result in inaccurate fuel level readings, or even fuel level readings that could indicate the tank is full when it is in fact empty. Auxiliary fuel tanks that continuously replenish the vehicles main tank will cause a P0460. At time of said test it had maybe an 8th of a tank of fuel. It is recommended to add fuel to the vehicles main tank with the key off.
Compensation simply means the fuel gauge reads Empty or Full at the time. It consists of two parts, one is mechanical float and the other side is variable resistor. The sensor detects a fuel level in the fuel tank and transmits a signal to the Engine Control Module P0460 code. Look for damaged, burnt, disconnected, shorted, and corroded wiring, connectors, and fuses. Otherwise, the gas tank has to come out to get access.
You might get lucky and there will be access under the back seat. The fuel level sensor consists of two parts, one is mechanical float and the other side is variable resistor. Note the fuel level sender unit that forms part of the canister. Note however that on some applications the needle may move rather slowly, so allow enough time for the needle to reach its point of maximum deflection before drawing any conclusions from this test. If either sensor isn't working correctly, the car will run rough and the engine will be less efficient.
I have a P0460 code and thinking the same I dropped the tank and replaced the sender unit making fuel tanks for Ford made me know enough to be dangerous. In which case, replacement or reconnection of the faulty component is required. Once you join you'll be able to post messages, upload pictures of your Ford, and have a great time with other Ranger fans. Go back to who read the codes and ensure that the right code was told to you. Customers that replenish the vehicles fuel tank from the auxiliary fuel tank while the key is on and engine is running, can set Ford P0460.
Also be aware that the fast response time seen on a magnetic fuel gauge is a function of its design, and it does not indicate a short circuit as it sometimes would on a purely resistance-type gauge. So you should chech it on our car models. If the electrical circuits look good, they will proceed with checking the components for damages or faults. As the fuel level changes, the float moves the arm, changing the resistance to ground which varies the voltage signal. Best of all it's totally free! Ford Crown Victoria Engine Specifications: Engine Type : Single Cylinder Engine Cylinder Type : Opposed Cylinder Engine Engine Air Intake Process : Naturally Aspirated Your Ford Crown Victoria engine control system detects a problem, the computer stores the diagnostic trouble code P0460 in its memory. Therefore, regardless of whether the tank is full or empty, the controller expects to see a predefined signal voltage that corresponds to that state, which means that if say, a short circuit or any other problem creates a resistance that is inconsistent with either state, the controller will set code P0460 and illuminate a warning light. Next, they check the electrical circuitry and look for signs of damage, disconnected wires, and corrosion.
What are the common causes of code P0460? Get a Haynes or Chilton Manual to see how to access the tank. Hello - the code is not a failure of the fuel gauge, but rather a discrepancy between how much fuel the Powertrain Control Module thinks is in the tank, and the fuel gauge reading. The fuel level sensor is in the gas tank. Customers that replenish the vehicles fuel tank from the auxiliary fuel tank while the key is on and engine is running, can set P0460. Okay, this vehicle is almost always run with less than a quarter of a tank of fuel, the day before the failed test it ran completely out of gas.