Electronic control unit
Removing
1. The electronic control unit of the EDS system is installed in the rear of the engine compartment behind the bulkhead.
2. Remove the ground wire from the battery.
3. Disconnect the multi-pin electrical connector from the electronic control unit.
4. Unscrew the screws and remove the electronic control unit from the bulkhead of the engine compartment.
Installation
1. Installation is made in sequence, return to removal.
Overload relay
Removing
1. The relay is installed on the main unit next to the EDS ECU. The relay contains fuses and diodes, the function of which is to protect the EDS from overcurrent and voltage surges.
2. Remove the ground wire from the battery.
3. Remove relay from socket.
Installation
1. Installation is made in sequence, return to removal.
Crankshaft speed sensor
Removing
1. Remove the ground wire from the battery.
2. Disconnect the electrical connector of the crankshaft sensor, which is located in the engine compartment behind the battery.
3. The crankshaft sensor is mounted on the mating surface between the cylinder block and the clutch housing above the starter motor. Unscrew the bolt and remove the crankshaft sensor from the clutch housing. Remove the gasket.
Installation
1. Installation is made in sequence, return to removal.
Coolant temperature sensor
Removing
1. Drain some of the coolant from the cooling system. Check that the ignition is off.
2. The coolant temperature sensor is located on the top left of the cylinder head.
3. Disconnect the electrical connector from the coolant temperature sensor.
4. Unscrew the sensor and remove the O-ring.
Installation
1. Installation is made in sequence, return to removal. Add coolant to the cooling system.
Electromagnetic actuator elr
Removing
1. The ARA solenoid actuator is bolted to the rear of the high pressure fuel pump. On vehicles equipped with ELR electronic idle control and ARA anti-knock control system, the solenoid actuator is located at the bottom.
2. Remove the ground wire from the battery.
3. On non-turbo models, remove the air filter.
4. Disconnect the electrical connector from the actuator.
5. Remove the two bolts and remove the actuator housing from the rear of the high pressure fuel pump. Remove the O-ring and pusher.
Installation
1. Installation is made in sequence, return to removal. When installing the actuator, install a new O-ring. When installing a new actuator, remove the pusher from the old actuator and install on the new actuator.
Vacuum valve for exhaust gas re-burning system
See corresponding description in subsection 13.6.
Air flow meter
Removing
1. Remove the ground wire from the battery. Remove the air filter.
2. Unscrew the air filter bracket from the air flow meter housing.
3. Loosen the clamps and remove the air pipes from the air flow meter. Remove sealing rings.
4. Disconnect the electrical connector from the air flow meter.
5. Unscrew the nuts and bolts and remove the air flow meter from the bracket.
Attention! Be careful and accurate when working with the air flow meter.
Installation
1. Installation is made in sequence, return to removal.
Intake air temperature sensor
The temperature sensor of the air entering the engine is an integral part of the air flow meter.