Fuel Pressure Hold Inspection
WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
- Stop the engine and check for a change in the fuel pressure gauge reading.
Specification: After engine stops, the gauge reading should hold for minimum 5 minutes
- Is fuel pressure within the specified value?
YES
- Go to next step below
NO
- Inspect the suspected area. Refer to table below. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Condition Possible Cause Suspected Area Fuel pressure drops slowly Injector leak Injector Fuel pressure drops immediately Stuck open check valve of the fuel pump Fuel pump