Removal
- Disconnect the cable from the negative terminal of the battery.
- Remove the 4 screws and remove the top cover of the engine protective casing.
- Remove the plastic wiring harness holder on the engine lifting eye.
- Disconnect the electrical wires and all pipes from the two guard cover holders
- Remove 2 screws each and remove the two holders.
- Disconnect the wires from the spark plugs on the front cylinder head and move them to the rear.
- Remove the bolts, disconnect the wires «masses», then remove the two plastic spacers.
- Remove the 4 bolts and the high voltage wire bracket.
- Remove the air intake pipe of the air filter.
- Disconnect the tube located between the idle air control valve and the air filter.
- Disconnect the tube from the absolute pressure sensor.
- Disconnect the oil vapor exhaust pipe.
- Disconnect the vacuum tube from the regulator and the absorber cleaning valve.
- Disconnect the vacuum hose from the brake booster.
- Disconnect the connector from the air sensor on the throttle body.
- Disconnect the connector from the idle air control valve.
- Disconnect the connectors from the potentiometer and the crankshaft speed sensor.
- Remove the bracket securing the fuel supply and return lines from the cylinder head.
- Disconnect the feeder (green mark) and returnable (red mark) fuel lines.
- Disconnect the wires from the fuel injectors.
- Remove the two bolts securing the damper - fuel pressure regulator assembly to the manifold, then remove the two thermal insulating spacers between the damper and the regulator.
- Remove the four bolts securing the two fuel distribution lines to the manifold, then remove the thermal insulating spacers
- Remove the fuel distribution line - damper - pressure regulator assembly.
- Disconnect the accelerator cable and cruise control linkage.
- Remove the four manifold mounting bolts on the cylinder head.
- Moving forward, remove the manifold-throttle assembly.
Installation
- Installation is carried out in sequence. reverse to withdrawal.
- Replace the manifold gaskets with new ones.
- Pay special attention to the correct installation and correct connection of all ducts and connectors.
- Check the correct installation of thermal insulating spacers at each attachment point of the fuel distribution lines and the fuel pressure damper-regulator assembly.