What causes a defective fuel pressure sensor valve?
This is caused by a defective high pressure pump or fuel pressure regulator valve. In case of customer complaint proceed as follows to verify the defective part: 1. Check fuel feed pressure at high-pressure pump with manometer engine running Is primary feed pressure less than 3, 4 bar? 2.
How can you tell if your fuel pressure sensor is bad?
If you see the engine warning light illuminate on your dashboard, then it could be a sign that your fuel pressure sensor is bad. Sometimes the engine control unit will sense a problem with the signal from the fuel rail sensor. Then it will activate the check engine light to let you know there is some kind of problem that is related to the engine.
Why is my CDI rail pressure so low?
I started researching this and according to star diagnosis the fault code I got (P2021-001) may be caused by low pressure in the low pressure fuel lines. I think this may be caused by the rear fuel filter…
Where is the fuel regulator on a Mercedes CDI?
The Mercedes CDI series of diesel engines have an electronically controlled fuel pressure regulator mounted on the end of the fuel distribution rail. This controls, as the name suggests, the fuel rail pressure.
I started researching this and according to star diagnosis the fault code I got (P2021-001) may be caused by low pressure in the low pressure fuel lines. I think this may be caused by the rear fuel filter…
What happens when your fuel rail pressure sensor goes bad?
When your fuel rail pressure sensor goes bad, the “Check Engine” warning light may illuminate on your dashboard. This light activates whenever the engine control unit detects an issue within the vehicle that affects the engine in some way.
What kind of pressure sensor does a diesel engine use?
A fuel rail pressure sensor (commonly known as a fuel pressure sensor) is used in many diesel and some gasoline engines.
The Mercedes CDI series of diesel engines have an electronically controlled fuel pressure regulator mounted on the end of the fuel distribution rail. This controls, as the name suggests, the fuel rail pressure.