Daewoo Matiz (2003 year). Manual - part 101

1F – 314  ENGINE CONTROLS

D102F546

OXYGEN SENSOR (O2S1)

Removal Procedure

1. Remove the air cleaner/resonator assembly. Refer to

Section 1B, SOHC Engine Mechanical.

2. Remove the oxygen sensor.

D

Disconnect the oxygen sensor connector (1).

D

Remove the oxygen sensor (2).

Notice: The oxygen sensor uses a permanently at-
tached pigtail and connector. This pigtail should not be
removed from the oxygen sensor. Damage or removal
of the pigtail or the connector could affect proper opera-
tion of the oxygen sensor. Take care when handling the
oxygen sensor. Do not drop the oxygen sensor.

D12F547A

Installation Procedure

1. Install in the reverse order of removal.

Important: A special anti–seize compound is used on
the oxygen sensor threads. This compound consists of
a liquid graphite and glass beads. The graphite will burn
away, but the glass beads will remain, making the sen-
sor easier to remove. New or service sensors will al-
ready have the compound applied to the threads. If a
sensor is removed from any engine and if for any reason
it is to be reinstalled, the threads must have anti–seize
compound applied before reinstallation.

2. Install the oxygen sensor.

Tighten

Tighten the oxygen sensor to 35~44 N

S

m (26~33 lb-

ft).

MAA1F470

HEATED OXYGEN SENSOR (HO2S2)

Removal and Installation Procedure

1. Disconnect the negative battery cable.

2. Remove the front center console.

3. Disconnect the HO2S2 connector.

4. Remove the front exhaust pipe. Refer to Section  1G,

Engine Exhaust.

5. Remove the HO2S2 from the front exhaust pipe.

Installation Procedure

1. Install in the reverse order of removal.

ENGINE CONTROLS  1F – 315

Important: A special anti–seize compound is used on
the oxygen sensor threads. This compound consists of
a liquid graphite and glass beads. The graphite will burn
away, but the glass beads will remain, making the sen-
sor easier to remove. New or service sensors will al-
ready have the compound applied to the threads. If a
sensor is removed from any engine and if for any reason
it is to be reinstalled, the threads must have anti–seize
compound applied before reinstallation.

2. Install the oxygen sensor.

Tighten

Tighten the oxygen sensor to 35~44 N

S

m (26~33 lb-

ft).

MAA1F480

EXHAUST GAS RECIRCULATION
VALVE

Removal Procedure

1. Disconnect the negative battery cable.

2. Remove the air cleaner assembly.

3. Disconnect the electric exhaust gas recirculation

(EEGR) valve connector.

D21F008

KNOCK SENSOR

Removal Procedure

1. Disconnect the negative battery cable.

2. Remove the starter. Refer to Section 1E, Engine

Electrical.

3. Disconnect the electrical connector at the knock sen-

sor (1).

D21F009

4. Remove the knock sensor.

D

Remove the knock sensor retaining bolt (1).

D

Remove the knock sensor.

1F – 316  ENGINE CONTROLS

D21F010

Installation Procedure

1. Install the knock sensor with the bolt.

Tighten

Tighten the knock sensor retaining bolt to 15–25 N

S

m

(11–18 lb-ft).

2. Connect the electrical connector to the knock sensor.

3. Install the starter. Refer to Section 1E, Engine Electri-

cal.

4. Connect the negative battery cable.

MAA1F490

ELECTRONIC IGNITION (EI) SYSTEM
IGNITION COIL

Removal Procedure

1. Disconnect the negative battery cable.

2. Note the ignition wire location and disconnect the

ignition wires from the EI system ignition coil.

3. Disconnect the EI system ignition coil connector.

4. Remove the EI system ignition coil retaining bolts.

5. Remove the EI system ignition coil.

MAA1F500

Installation Procedure

1. Install the EI system ignition coil.

2. Tighten the EI system ignition coil to 8–12 N

S

m

(71–106 lb-in).

UAA1F2C0

CRANKSHAFT POSITION (CKP)
SENSOR

Removal Procedure

1. Disconnect the negative battery cable.

2. Remove the air cleaner assembly.

3. Disconnect the crankshaft position (CKP) sensor

connector.

4. Remove the CKP sensor retaining bolt.

ENGINE CONTROLS  1F – 317

MAA1F550

Installation Procedure

1. Install the CKP sensor.

2. Tighten the CKP sensor retaining bolt to 5–8 N

S

m

(44–71 lb-in).

UAA1F2E0

CAMSHAFT POSITION (CMP)
SENSOR

Removal Procedure

1. Disconnect the negative battery cable.

2. Disconnect the camshaft position (CMP) sensor con-

nector.

3. Remove the CMP sensor retaining bolt.

4. Remove the CMP sensor.

MAA1F540

Installation Procedure

1. Install the CMP sensor.

2. Tighten the CMP sensor retaining bolt to 10–14 N

S

m

(89–124 lb-in).

MAA1F510

ENGINE CONTROL MODULE (ECM)

Removal Procedure

1. Disconnect the ECM connector.