CX-7 AWD L4-2.3L Turbo (2008)
Fuel Pressure: Testing and Inspection
Fuel Pressure Test
FUEL LINE PRESSURE INSPECTION[L3 WITH TC]
Low Pressure Line (From the Fuel Tank to the High Pressure Fuel Pump)
WARNING: Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death. Fuel can also irritate skin and
eyes. To prevent this, always complete the "BEFORE REPAIR PROCEDURE".
CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick
release connector. Always clean the quick release connector joint area before disconnecting/connecting using cloth or soft brush, and make
sure that it is free of foreign material.
1. Complete the "BEFORE REPAIR PROCEDURE". (See BEFORE REPAIR PROCEDURE[L3 WITH TC]) See: Service and
Repair/Procedures/Before Repair Procedure
2. Disconnect the vacuum hose from the intake manifold that connecting to the power brake unit.
3. Disconnect the negative battery cable.
CAUTION: The quick release connector may be damaged if the tab is turned too far. Do not turn the tab over the stopper.
4. Disconnect the quick release connector from the fuel tank.
5. Push the SST quick release connector into the fuel pipe and plastic fuel hose into the SST until a click is heard.
6. Turn the lever parallel to the hose of the SST as shown.
7. Connect the vacuum hose to the intake manifold that connecting to the brake booster.
8. Connect the negative battery cable.
9. Start the engine and let it idle. Measure the fuel line pressure.
-
If not as specified, inspect the following:
Zero or low
-
FP circuit
-
FP
-
Fuel line (clogged)
-
Fuel leakage inside pressure regulator
High
-
Pressure regulator for high pressure cause
Fuel line pressure
410 - 490 kPa (4.2 - 4.9 kgf/sq.cm, 60 - 71 psi)
10. Turn the ignition switch to the LOCK position.
11. Measure the fuel hold pressure after 5 min.
-
If not as specified, inspect the following:
