P0088 Fuel pressure too high
P0088 means: Fuel pressure too high. Fuel pressure is higher than the engine computer wants, or it can't keep the pressure where it should be. Drive gently and have the car checked soon. The repair usually costs about €80–700 in Estonia. The most common cause: pressure regulator is stuck.
What it means
Fuel pressure is higher than the engine computer wants, or it can't keep the pressure where it should be.
What could be wrong
- 1Pressure regulator is stuck
- 2Fuel pressure sensor reads wrong
- 3Fuel return line is blocked
- 4Connector or wire
What you can check yourself
Check the pressure sensor and regulator connectors. Best left to a workshop. It needs a diagnostic tool and experience.
How we fix it
- We compare requested and actual pressure
- We check the regulator and sensor
- We replace the faulty part
Standard SAE description: Fuel Rail/System Pressure Too High