Article by: Dr. Aleix Rosario Segundo | Last update: April 10, 2022
Injection pumps, until a few years ago, have been generating pressures around 1,000 bar. Currently, the maximum pressures are between 1,500 and 2,000 bar.
- 1 How is the pressure of the injectors measured?
- 2 What is the fuel pressure?
- 3 How many bars does a gasoline pump have?
- 4 What voltage should reach the fuel pump?
- 4.1 What is the average life of a fuel pump?
- 4.2 When should the fuel pump be changed?
- 4.3 How to know if the fuel pump no longer works?
- 4.4 How to know if the fuel pump fails?
- 4.5 Why is the fuel pump damaged?
- 4.6 What happens if the fuel pump no longer has pressure?
- 4.7 Why does the fuel pump fail?
- 4.8 How to start a car with faulty fuel pump?
- 4.9 What is the fuel pump fuse?
- 4.10 Where is the fuel pump relay located?
- 4.11 How to take care of the fuel pump?
- 4.12 How does an electric fuel pump work?
How is the pressure of the injectors measured?
The measurement must be carried out directly on the high pressure pump, on the screw that the pump itself has for this purpose. This method is effective because the pressure in the high-pressure pump during start-up is similar to that in the feedback loop.
What is the fuel pressure?
There are two fuel injection systems, the MPFI (Multiport Fuel Injection) which generally operates with a pressure of 40 PSI to 50 PSI. The other system is TBI (Throat Body Injection), which generally operates at 15 PSI to 20 PSI.
How many bars does a gasoline pump have?
An electric fuel pump is capable of working at a pressure of between 3 and 4.5 bars, although there are some that reach up to 5.8 bars.
What voltage should reach the fuel pump?
A vehicle, under normal conditions, has a system voltage of about 13.5 volts (12.6 volts from the battery plus some charging system voltage). The fuel pump reaches its optimum capabilities at 13.5 volts.
33 related questions found
What is the average life of a fuel pump?
Your car’s fuel pump is designed to last about 50,000 miles, but it can last much longer than that. Developing certain habits can help you extend the life of your fuel pump.
When should the fuel pump be changed?
When should a fuel pump be replaced?
– Lack of power in the vehicle when it is “under load” (at highway speeds or when the vehicle has a heavy load and/or several passengers). – The engine does not start or it is difficult to start.
How to know if the fuel pump no longer works?
How to know if there are faults in the fuel pump?
The vehicle does not start or starts sporadically. … Jerks on acceleration and idling … Engine misfires and intermittent noises. … Overall check. … Checking the spark plugs. … Checking the timing chain.
How to know if the fuel pump fails?
Common symptoms of fuel pump failure
Vehicle jerks or backfires at high speeds. Loss of power when accelerating. Loss of power when driving uphill. Engine overloads. Engine won’t start.
Why is the fuel pump damaged?
The main manufacturers of fuel pumps assure that in more than 90% of cases the gasoline pumps are damaged by the quality of the fuel that we put in our car and the pollutants that are produced in it, since they progressively degrade the components of the bomb.
What happens if the fuel pump no longer has pressure?
Insufficient fuel pressure will cause you to lose power when the car is in hard work or when you need to force the engine. This is caused by low pressure or a small amount of fuel released by the pump.
Why does the fuel pump fail?
“When the pump starts to fail there are warnings that we must pay attention to, such as sudden jerks when we accelerate. This indicates a lack of gasoline in the injectors and, consequently, a poor mixture of gasoline and air, which translates into a malfunction of the engine.
How to start a car with faulty fuel pump?
When the ignition is turned on and the car won’t start due to damage and a faulty fuel pump, all you have to do is connect a pressure gauge to your car’s engine. This method is one of the safest ways to start a car with a bad fuel pump.
What is the fuel pump fuse?
Most fuel pumps are powered by a 15 (blue) 20 (yellow) or 25 (clear) amp fuse. Using a fuse that is too small will cause the fuse to blow again.
Where is the fuel pump relay located?
The fuel pump relay is fairly easy to find and identify. It is located in a fuse box in which the flat fuses secure the individual electrical circuits of the vehicle’s electrical system. The relay is a small die that has a plastic cover.
How to take care of the fuel pump?
Tips to keep the fuel pump in good condition
Timely change the gasoline filter, this prevents the entry of dirt particles that clog and clog the pump. Check that the tank always has gasoline. When changing the pump, always clean the tank and its ducts.
How does an electric fuel pump work?
To start up and because they are electrical devices, the fuel pumps use a battery, usually 12 volts. Once it receives an injection of energy from a relay, it begins to rotate at a certain speed, which is generally constant.
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