How often does a common rail diesel injector fire?
Also, modern common-rail diesel injectors can fire two or three times per engine cycle, doubling the wear on the injector compared to diesels of the past—hence the need for more conscientious maintenance.
Are there any problems with common rail fuel systems?
Although common rails are an improvement from prior types of fuel systems, they’re not without their issues. Many of these problems, however, stem from things unrelated to the design of a common rail system, which common rail owners should be aware if they want to minimize expensive repairs.
Can a faulty EFI cause an engine stumble?
With computer controlled EFI, the computer or any of its sensors or actuators can go faulty, and when this happens you can get, you guessed it- incorrect ignition and incorrect fuel/ air mixture for the required operating condition, thus engine stumble. Here is the list of items on the 90+ that can be sources of this problem (no particular order):
What causes hard starting on a diesel engine?
3. Once the fuel is delivered into the rail/injectors at the relevant pressure it must be maintained within the injectors or rail. If the engine turns over too slowly, the pump cannot generate enough fuel pressure to activate start of injection causing hard starting problems.
Can a bad fuel rail sensor cause a stall?
Improper supply of fuel to the engine will cause an unexpected stall. No matter what you try, the engine will often not start again. If this happens frequently, the fuel rail pressure sensor might not be working properly enough to send the correct information to the vehicle’s onboard computer.
What does check engine light on fuel rail sensor mean?
Check Engine Light comes on The fuel rail sensor, commonly referred to as the fuel pressure sensor, is an engine management component that is commonly found on diesel, and some gasoline injected vehicles. It is a part of vehicle’s fuel system and designed to monitor the fuel pressure that is present at the fuel rail.
Why do we put insulation on the fuel rails?
Our fuel line insulation wraps around the fuel rails to shield them from the radiated heat in the engine compartment. Cooler fuel rails mean less heat transferred from the rail to the fuel inside and more efficient temperatures for a properly functioning fuel-injection system.
Can you clean a fuel rail pressure sensor?
Can you clean fuel rail pressure sensor? You can clean the sensor, but it is doubtful that it will make a difference. In some very rare cases, dirt can block the passage to the sensor head, which will make the sensor work again after a clean. However, in most cases, you need to replace the fuel pressure sensor.