The oxygen sensor is located inside the exhaust manifold of a vehicle. Its purpose is to keep track of the level of oxygen that remains unburned in the exhaust system as the exhaust leaves the engine.
Symptoms of a Bad Fuel Pressure Sensor
The fuel rail pressure sensor is responsible for analyzing the fuel pressure inside the fuel pump assembly’s rail.
This sensor is an electronic device that calculates the fuel pressure and then sends this information to the PCM (Powertrain Control Module).
The PCM is the main computer of a vehicle. It is responsible for managing the engine’s operation and providing it with what it needs to maintain its running, such as its fuel requirements.
With the information the PCM receives from the fuel pressure sensor, it will know the exact amount of fuel to give the engine. This way, the engine does not receive too much or too little fuel.
Instead, it receives just enough fuel to operate properly while reducing evaporative emissions.
Common Symptoms of a Faulty Fuel Pressure Sensor
If there is something wrong with your fuel pressure sensor, there are easily recognizable symptoms that will appear to you. Below are the top 5 symptoms to watch for in case your vehicle’s fuel pressure sensor deteriorates.
1) Warning Light
If you see the engine warning light illuminate on your dashboard, it could be a sign that your fuel pressure sensor is bad.
Sometimes, the engine control unit detects a problem with the fuel rail sensor signal. It will then activate the check engine light to let you know there is some kind of engine-related issue.
Of course, there are a plethora of other reasons why the engine light would come on besides having a bad fuel pressure sensor.
2) Low Power
If you press the accelerator pedal and notice a decrease in your acceleration power, it might be due to the fuel pressure sensor.
If the sensor is bad, it will interfere with the air/fuel ratio. This will result in a loss of power from your car while you are driving.
3) Starting Problem
If you try to start your vehicle’s engine and it regularly gives you trouble, your fuel pressure sensor is likely not sending a good signal to the engine computer.
At first, the engine will eventually start after a few tries. But then, it will reach a point where it won’t start at all.
4) Stalling
Sometimes, you might be surprised and have your vehicle stall while you are driving it. If you’ve already had difficulty starting your car but then got the engine started, you might stall while driving later.
But even if it’s the first time you’re stalling, it could still be due to a bad fuel pressure sensor.
5) Poor Fuel Efficiency
With a bad fuel pressure sensor, the engine will not receive the correct amount of fuel for its internal combustion process. For this reason, the engine does not release the proper amount of energy for the other car components to function correctly.
To make matters worse, you might end up burning too much fuel and then paying more for fuel at the gas station.
Fuel Pressure Sensor Replacement Cost
The cost of replacing a fuel rail pressure sensor depends on the make and model of your vehicle. However, on average, you can expect to pay between $130 and $210 for a replacement job like this.
The part itself will only cost you about $50 to $90, but the labor will cost you $80 to $120 (typical hourly rate for a professional mechanic).
Depending on the vehicle, replacing the sensor might only take a few minutes, but there is usually a one-hour minimum. If you have some mechanical experience, replacing the fuel rail pressure sensor is a good DIY candidate.
Note: Do not confuse the fuel rail pressure sensor with the fuel tank pressure sensor. The latter is located inside or next to the fuel tank and requires much more time to replace.
Operating principle of the crankshaft position sensor
A vehicle’s internal combustion engine contains a crankshaft and a piston. These two components allow the engine to start and produce the necessary power to move the vehicle.
The benefits of the variable valve timing engine
There is a modern technology for car engines called variable valve timing. It helps increase the efficiency and overall performance of your engine.
Causes of Timing Chain Noise in Your Car
The timing chain is an important component because it keeps the camshaft and crankshaft connected and synchronized as they rotate. If you have ever seen a bicycle chain before, the timing chain is very similar.
What does reduced engine power mean?
The engine is the heart of the automobile. It is the machine that generates mechanical energy from another energy source. When you press the accelerator pedal, you are essentially placing a greater demand on your engine to produce more power.
Causes of a Bent Intake and Exhaust Valve
Every vehicle equipped with an internal combustion engine has an intake valve and an exhaust valve. The intake valve is located in the cylinder head.
Ignition Coil Testing Tips and Replacement Cost
Every car has at least one ignition coil. The purpose of an ignition coil is to increase the voltage generated by the car’s battery to ignite the fuel and start the engine. A car battery typically produces a current of 12 volts.
Symptoms of a Bad Ignition Coil in Your Vehicle
An ignition coil in a vehicle essentially serves as a compact electrical transformer. In other words, an ignition coil has the ability to convert the 12-volt electrical current from a car battery into at least 15,000 volts of electricity for the spark plug.
Coolant Temperature Sensor Problem
It is important that the coolant temperature sensor is functional at all times, otherwise it will not be able to correctly determine the temperature of the coolant inside an internal combustion engine.
