What is the fault phenomenon when the throttle oil pressure is too high or too low?

The low fuel pressure of electronically controlled engine will make it difficult or impossible to start the engine, with weak acceleration and unstable idle speed. Common problems include blocked gasoline filter, oil leakage from gasoline pump, incorrect pressure adjustment of pressure limiting valve of gasoline pump, failure of oil pressure regulator, etc.

Too high oil pressure of electronically controlled engine will lead to too high idle speed of engine, difficult start-up and increased oil consumption, such as improper adjustment of pressure limiting valve of gasoline pump, failure of oil pressure regulator and blockage of oil return pipeline. The fuel pressure can be detected by the fuel pressure gauge.

Check the oil pressure regulator and oil pump.