xA L4-1.5L (1NZ-FE) (2006)
Fuel Injector: Service and Repair
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE
CAUTION:
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DISCHARGE FUEL SYSTEM PRESSURE procedures must be performed before disconnecting any part of the fuel system.
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After performing the DISCHARGE FUEL SYSTEM PRESSURE procedures, pressure will remain in the fuel line. When disconnecting the
fuel line, place a cloth or equivalent over fittings to reduce the risk of fuel spray.
a. Remove the circuit opening relay (Marking: C/OPN) from the instrument panel junction block.
b. Start the engine. After the engine has stopped, turn the ignition switch OFF.
HINT: Possibly DTC P0171 (system too lean) will be set.
c. Check that the engine does not start.
d. Remove the fuel tank cap, and let the air out of the fuel tank.
e. Disconnect the cable from the negative (-) battery terminal.
f.
Install the circuit opening relay.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt
pretensioner activation.
3. REMOVE NO. 2 CYLINDER HEAD COVER
a. Remove the 4 nuts and cover.
4. REMOVE IGNITION COIL
5. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
6. DISCONNECT FUEL TUBE SUB-ASSEMBLY