On-vehicle inspection
1. Inspection of fuel pump function
(a) Connect hand-held tester to diagnostic joint.
(b) Turn ignition switch to ON and turn main switch of hand-
held tester to ON.
Note: do not start the engine.
(c) Switch hand-held tester to function test state.
(d) For further details, please see hand-held tester operating
instruction.
(e) If there is no hand-held tester, connect battery positive (+)
wire to P+ terminal and negative (-) wire to P- terminal.
2. Inspection of fuel pressure
(a) Preparation of inspection.
Purchase new fuel hose and take out fuel pipe joint.
(b) Take measures to prevent gasoline leaking.
(c) Disassemble fuel pipe clamp at fuel pipe joint of fuel rail
component.
(d) Disassemble fuel hose from fuel pipe of fuel rail component.
(e) As shown in the diagram, install special tool (pressure
gauge) with special tool and fuel pipe joint.
(f) Check there is fuel leakage.
(g) Start engine.
(h) Measure the fuel pressure at idle speed state.
Fuel pressure: 390~400Pa
(i) Take measures again to prevent gasoline leaking.
(j) After measuring the fuel pressure, remove special tool.
(k) Connect back fuel hose.
(l) Install fuel hose fixing clip to fuel pipe joint.
(m)Check there is fuel leakage.
Fuel-Fuel system
Special
tool
16
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