Question

On my Hyundai, I got the engine P1188, what is fuel pressure leakage?

Answer 1

P1188 Fuel pressure leakage,

This is low fuel pressure, The fuel pressure is developed in the fuel rail , and pressure is maintained by the pressure regulator, when a lean running conition is seen by the ECM you code a rational code, due to a lean running condition so a pressure/volume test is required

Answer 2

P1188 HYUNDAI - Fuel Pressure Monitoring - Leakage

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