We remove the elements of the engine management system for inspection and replacement.

Removing the electronic control unit (ECU)

We prepare the car for the task, disconnect the negative battery terminal

Removing the electronic control unit (ECU)Removing the electronic control unit (ECU)

Raise the retainer of the engine control harness block

Disconnect the block of wires from the block connector

Removing the electronic control unit (ECU)Removing the electronic control unit (ECU)

With a 10 head, unscrew the nut of the stud of the lower fastening of the block to the battery platform

Unscrew the top stud nut

Removing the electronic control unit (ECU)

Remove the control unit from the studs of the battery platform

Installing the block in reverse order

Removing the crankshaft position sensor

Disconnect the negative battery terminal

To approach the sensor, remove the air path resonator (inlet air silencer)

Disconnect the wiring harness from the coolant temperature sensor

Removing the crankshaft position sensor Removing the crankshaft position sensor

Unfasten the plastic holder for the engine control harness

Remove the wiring harness away from the crankshaft position sensor

Removing the crankshaft position sensor Removing the crankshaft position sensor

Push the latch of the engine management system wiring harness block, remove the block from the crankshaft position sensor connector

With a 10 head, we unscrew the two bolts securing the sensor and the bracket for the wire harness holder

Removing the crankshaft position sensor

Remove the sensor and the harness holder bracket

Install the sensor in reverse order

Removing the engine coolant temperature sensor

We drain part of the coolant from the engine (if you quickly replace it, you can not drain it)

Remove the air intake silencer

Disconnect the negative battery terminal

Removing Engine Coolant Temperature SensorRemove Engine Coolant Temperature Sensor

We press the lock of the engine control system wiring harness and disconnect the wiring harness from the sensor connector

Using a 21 spanner, unscrew the sensor from the hole in the thermostat housing

Removing Engine Coolant Temperature Sensor

The sensor is sealed with an aluminum washer.

Install the sensor in reverse order

Removing the throttle position sensor (for a cable-actuated throttle assembly)

Removing the throttle position sensor

Disconnect the connector from the throttle position sensor connector

Remove the throttle body

Removing throttle position sensor Remove throttle position sensor

Using a Torx T-20 wrench, unscrew the two screws securing the sensor to the throttle body

Remove the sensor from the throttle axis

Install the sensor in reverse order.

Removing the electronic gas pedal

Removing the electronic gas pedalRemoving the electronic gas pedal

Squeeze the latches of the instrument panel wire block, remove the block from the electronic gas pedal connector

With a 10 head, unscrew the three nuts securing the gas pedal module to the bulkhead

Removing the electronic gas pedal</ p>

Remove the electronic gas pedal

Install the electronic pedal in reverse order.

Removing the knock sensor

Disconnect the negative battery terminal

Removing the fuel rail protection

Removing the knock sensorRemoving the knock sensor

We remove the wiring harnesses from the installation site of the knock sensor

By pressing the wire retainer of the engine management system wiring harness block, disconnect the block from the sensor connector

Removing the knock sensor

Unscrew and remove the knock sensor with a 24 socket wrench

Install the sensor in reverse order

Removing the absolute air pressure sensor

Removing the absolute air pressure sensor Removing the absolute air pressure sensor

With the ignition off, depressing the lock of the engine control harness block

Disconnect the wiring harness from the sensor connector

Removing the absolute air pressure sensor

Remove the sensor from the hole in the receiver.

If the sealing rings are deformed or have lost their elasticity, then we replace them.

Install the sensor in reverse order

Removing the intake air temperature sensor

We prepare the car, disconnect the negative terminal of the battery.

Removing the intake air temperature sensorRemoving the intake air temperature sensor

Press the wire retainer of the engine control harness block

Disconnect the block from the sensor connector

Removing the intake air temperature sensor

Remove the sensor from the hole in the receiver

Install the sensor in the reverse order, inserting its latches into the corresponding slots in the receiver holes.

Removing the control oxygen sensor

Remove the air filter housing (article - Nissan Almera air filter replacement)

Disconnect the negative battery terminal

Removing the control oxygen sensor

Disconnect the wire blocks of the control oxygen concentration sensor

Remove the sensor wire block from the holder

Removing the control oxygen sensorRemove control oxygen sensor

We pass the sensor wire block through the ring of the ring spanner by 22 and put the key ring on the sensor's hex

Unscrew the sensor and remove it from the exhaust manifold

Install the control oxygen sensor in the reverse order.

Before installing the sensor, apply graphite grease to the threaded part of the sensor.

Removing the diagnostic oxygen sensor

We install the car on a lift or a viewing ditch.

Disconnect the negative battery terminal

Removing the diagnostic oxygen sensor Removing the diagnostic oxygen sensor

We press the lock of the engine control system wiring block and disconnect the wiring block from the sensor block.

We move the sensor wire block from the holder fixed to the heat shield

We pass the sensor wire block through the ring of the spanner key to 22 and, putting the key ring on the sensor hexagon, unscrew the sensor from the threaded hole of the pipe.

Install the sensor in reverse order.