2003 DAEWOO MATIZ Service Repair Manual

ENGINE CONTROLS 1F–319
DAEWOO M-150 BL2
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNmLb-FtLb-In
Camshaft Position Sensor Bolts10–14–89–124
Engine Coolant Temperature (ECT) Sensor8–12–71–106
Crankshaft Position (CKP) Sensor Retaining Bolt5–8–44–71
Electronic Ignition (EI) System Ignition Coil Retaining
Bolts8–12–71–106
Evaporative Emission Canister Protective Cover8–71
Electric Exhaust Gas Recirculation (EEGR) Valve
Retaining Bolts20–3015–22–
Fuel Rail Retaining Bolts18–2213–16–
Fuel Tank Strap Retaining Nuts18–2213–16–
Knock Sensor Bolt15–2511–18–
Intake Air Temperature (IAT) Sensor20–3015–22–
Manifold Absolute Pressure (MAP) Sensor Retaining
Bolt8–12–71–106
Oxygen Sensor35–4426–33–
Heated Oxygen Sensor35–4426–33–
Throttle Body Retaining Bolt9–12–80–106
ECM Mounting Bolts6–8–53–71
SPECIAL TOOLS
SPECIAL TOOLS TABLE
D102F101
Scan Tool
D12F102A
DW–140–010A
Fuel Pump Lock Ring
Remover/Installer

1F–320 ENGINE CONTROLS
DAEWOO M-150 BL2
ECM WIRING DIAGRAM (SIRIUS D3 – 1 OF 5)
MAA1F610

ENGINE CONTROLS 1F–321
DAEWOO M-150 BL2
ECM WIRING DIAGRAM (SIRIUS D3 – 2 OF 5)
MAA1F620

1F–322 ENGINE CONTROLS
DAEWOO M-150 BL2
ECM WIRING DIAGRAM (SIRIUS D3 – 3 OF 5)
MAAF630

ENGINE CONTROLS 1F–323
DAEWOO M-150 BL2
ECM WIRING DIAGRAM (SIRIUS D3 – 4 OF 5)
MAA1F640

1F–324 ENGINE CONTROLS
DAEWOO M-150 BL2
ECM WIRING DIAGRAM (SIRIUS D3 – 5 OF 5)
MAA1F650

DAEWOO M-150 BL2
SECTION 1G
ENGINE EXHAUST
TABLE OF CONTENTS
Description and Operation 1G-2. . . . . . . . . . . . . . . . . .
Exhaust System 1G-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Muffler 1G-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Catalytic Converter 1G-2. . . . . . . . . . . . . . . . . . . . . . . .
Component Locator 1G-3. . . . . . . . . . . . . . . . . . . . . . . .
Exhaust System 1G-3. . . . . . . . . . . . . . . . . . . . . . . . . . . Repair Instruction 1G-4. . . . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 1G-4. . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Pipe/Catalytic Converter 1G-4. . . . . . . . . . . .
Pup-up Catalitic Converter 1G-5. . . . . . . . . . . . . . . . . .
Front Muffler 1G-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Muffler 1G-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 1G-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 1G-9. . . . . . . . . . .

1G – 2 ENGINE EXHAUST
DAEWOO M-150 BL2
DESCRIPTION AND OPERATION
EXHAUST SYSTEM
Notice: When you are inspecting or replacing exhaust
system components, make sure there is adequate clear-
ance from all points on the underbody to avoid possible
overheating of the floor pan and possible damage to the
passenger compartment insulation and trim materials.
Check the complete exhaust system and the nearby
body areas and tailgate for broken, damaged, missing or
mispositioned parts, open seams, holes, loose connec-
tions or other deterioration which could permit exhaust
fumes to seep into the luggage or passenger compart-
ment. Dust or water in the luggage may be an indication
of a problem in one of these areas. Any defects should
be corrected immediately.
MUFFLER
The muffler reduces the temperature, pressure, and
noise of the exhaust gas.
Aside from the exhaust manifold connection, the ex-
haust system uses a flange and seal joint design op-
posed to a slip joint coupling design with clamp. If holes,
open seams or any deterioration is discovered upon in-
spection of the front muffler and pipe assembly, thecomplete assembly should be replaced. The same pro-
cedure is applicable to the rear muffler assembly.
Heat shields in the front and rear muffler assembly posi-
tions, as well as for the catalytic converter and front ex-
haust pipe, protect the vehicle and the environment from
high temperatures the exhaust system develops.
CATALYTIC CONVERTER
Notice: When jacking or lifting the vehicle from the body
side rails, be certain that the lift pads do not contact the
catalytic converter as this could damage the catalytic
converter.
Notice: The catalytic converter requires the use of un-
leaded fuel only, or damage to the catalyst will result.
The catalytic converter is an emission control device
added to the exhaust system to reduce pollutants from
the exhaust pipes.
The oxidation catalyst is coated with a catalytic material
containing platinum and palladium, which reduces levels
of hydrocarbon (HC) and carbon monoxide (CO) from
the exhaust gas. The three-way catalyst has coatings
which contain platinum and rhodium, which additionally
lower the levels of oxides of nitrogen (NOx).