P0088 is a OBD2 trouble code that tells us there is high fuel pressure found in the fuel system. This high fuel pressure is detected by the fuel pressure sensor located on the fuel rail. Once the high fuel pressure is detected the ECM causes a Check Engine Light to be seen on the dashboard of the vehicle.
What causes fuel rail pressure too high?
Causes of High Fuel Pressure
As we discussed, high fuel pressure means that the air to fuel ratio is off-kilter. The causes for this imbalance of fuel pressure typically include either a bad fuel regulator or a clogged return line.
How do you fix a fuel rail pressure sensor a high circuit?
What repairs can fix the P0193 code?
- Add fuel to the fuel tank.
- Repair broken or shorted wires.
- Repair corrosion of the wiring and/or connectors.
- Replace clogged fuel filter.
- Replace fuel pump relay.
- Replace fuel pump fuse.
- Replace fuel pump.
- Replace fuel rail pressure sensor.
Where is the high pressure fuel sensor located?
The fuel tank pressure sensor is part of the fuel pump assembly and is mounted on top of the tank or inside the tank. It’s part of the evaporative emissions system (commonly referred to as “EVAP”) and reads pressure in the fuel system to detect evaporative leaks, such as a loose or faulty gas cap.
What causes low fuel rail pressure?
Three of the most common causes of heavy equipment low fuel pressure are a faulty regulator, a fuel pump malfunction or problems with the fuel lines.
How do you fix error P0088?
What repairs can fix the P0088 code?
- Replacement of the damaged fuel lines.
- Faulty fuel pressure sensor replaced.
- Replacement of the fuel pressure regulator.
How do you lower the pressure on a fuel pump?
How to Reduce the Fuel Pressure in a Car
- Locate the rubber fuel hose that runs from the fuel pump to the carburetor. …
- Install the proper size hose fittings in each end of the pressure regulator. …
- Place a hose clamp over each end of the fuel hose. …
- Tighten the hose clamps.
Can a fuel rail sensor be cleaned?
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.
How do you test a fuel rail pressure sensor?
Zitat von Youtube: Check done on the fuel rail pressure sensor. So if you do get a code trusted. Finally if faced with a fuel rail pressure sensor code first test the wiring as mentioned here.