Table of contents: Removal ↓ Installation ↓
Removal
Relieve the pressure in the fuel injection line by disconnecting the hose from the control pressure fitting on the fuel pressure regulator.
Disconnect the fuel lines of the injection nozzles from the distributor.
Remove the air duct connecting the air flow meter to the throttle body.
Unscrew the bolts securing the air flow meter assembly to the air filter housing and remove the air flow meter and distributor.
If necessary, disconnect the metering unit from the air flow meter by unscrewing the three bolts on the metering unit. Be careful not to drop the metering plunger.
Installation
Install the air flow metering unit onto the air filter housing.
Tighten the mounting bolts.
Connect the fuel lines to the distributor, replacing the gaskets.
Place the connecting air duct onto the air flow meter.
Connect the control pressure line to the fuel pressure regulator, installing new gaskets.
Adjust the engine idle speed.