Rio L4-1.5L (2001)
Fuel Pressure: Testing and Inspection
Fuel Pressure Hold Inspection
1. Disconnect negative battery terminal.
WARNING: THE FUEL SYSTEM REMAINS UNDER PRESSURE WHEN THE ENGINE IS NOT RUNNING. RELEASE FUEL
SYSTEM PRESSURE BEFORE DISCONNECTING ANY FUEL LINE TO REDUCE THE CHANCE OF PERSONAL INJURY OR
FIRE DAMAGE TO VEHICLE COMPONENTS.
2. Release fuel system pressure.
3. Raise a vehicle.
4. Install SST(0K2A1 131 001A) to fuel filter as described below.
5. Connect negative battery terminal.
6. Connect data link connector terminals FUEL PUMP and B+ with jumper wire.
7. Turn ignition switch ON for 10 seconds to operate fuel pump.
8. Turn ignition switch OFF and remove jumper wire.
9. Inspect fuel pressure after 25 minutes.
Fuel pressure: More then 25 psi (180 kPa, 1.8 kg/sq.cm)
10. If not as specified, check the following components: do following inspections:
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Fuel pump
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Pressure regulator
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Injectors
