2003 DAEWOO MATIZ torque

ENGINE CONTROLS 1F–135
DAEWOO M-150 BL2
DIAGNOSTIC TROUBLE CODE (DTC) – P0300 MULTIPLE CYLINDER MISFIRE
System Description
The Engine Control Module (ECM) monitors the crank-
shaft and camshaft positions to detect if the engine is
misfiring. The ECM looks for a quick drop in crankshaft
speed. This test is executed in blocks of 100 engine rev-
olution tests. It may take between one to several tests to
store a Diagnostic Trouble Code (DTC) and illuminate
the Malfunction Indicator Lamp (MIL). Under light misfire
conditions, it may also take more than one trip to set a
DTC. Severe misfire will flash the MIL, indicating that
catalyst damage is possible.
Conditions for Setting the DTC

Emission threshold is 3.0% for manual transaxle.

20 engine cycles have occurred since cranking has
started.

A/C compressor clutch has not just engaged or disen-
gaged.

Engine load and engine speed are in a detectable re-
gion and are at or above zero torque.

Camshaft Position (CMP) sensor is in synchroniza-
tion.

Electric Exhaust Gas Recirculation (EEGR) flow
diagnostic is not in progress.

Fuel level is greater than or equal to 20% of rated
tank capacity.

Decel Fuel Cutoff (DFCO) not active.

Fuel is not shutoff from high engine speed of 6500
rpm for manual transaxle vehicle.

Fuel is not shutoff at 255 km/h (158 mph).

Throttle position change is less than 3% per 125 ms.

Vehicle has not encountered an abusive engine
speed of 7000 rpm.
Crankshaft speed patters are normal.

Throttle position is less than 4% when vehicle speed
is greater than 10 km/h (6 mph).

Engine speed is between 800 and 4500 rpm.

Vehicle voltage is between 11 and 16 volts.

Engine Coolant Temperature (ECT) is between –7°C
(20°F) and 120°C (248°F).

The engine speed is less than or equal to 1800 rpm or
the crank angle sensing error has not been learned.

There is the correct ratio between Crankshaft Posi-
tion (CKP) sensor pulses and CMP sensor pulses.

DTCs P0106, P0107, P0108, P0117, P0118, P0122,
P0123, P0320, P0337, P0341, P0342 and P0502 are
not set.
Action Taken when the DTC Sets

The malfunction Indicator Lamp (MIL) will blinking.

The ECM will record operating conditions at the time
the diagnostic fails. The information will be stored in
the Freeze Frame and failure records buffers.

A history DTC is stored.
Conditions for Clearing the MIL/DTC

A history DTC will clear after 40 consecutive warm up
cycles without a fault.

DTC(s) can be cleared by using the scan tool.
Diagnostic Aids
An intermittent can also be the result of a defective re-
luctor wheel. Remove the CKP sensor and inspect the
reluctor wheel through the sensor mount hole. Check for
porosity and the condition of wheel. If the DTC is inter-
mittent refer to “Symptoms Diagnosis” in this section.
DTC P0300 – Multiple Cylinder Misfire
StepActionValue(s)YesNo
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Was the check performed?
–
Go to Step 2
Go to
“On-Board
Diagnostic
System Check”
2
1. Install a scan tool to the Data Link Connector
(DLC).
2. Turn the ignition ON, with the engine OFF.
3. Request Diagnostic Trouble Codes (DTCs)
Are DTCs P0201, P0202, P0203, P0204 set?
–Go to
Applicable DTC
table
Go to Step 3
3
Perform a visual/physical inspection.
Make any repairs that are necessary.
Is the repair complete?–
Go to Step 27Go to Step 4
4Start the engine and allow it to idle.
Are any Misfire Current counters incrementing?–
Go to Step 5Go to Step 6
5Are all counters equal (within a percentage of each
other)?–Go to Step 7Go to Step 11

ENGINE CONTROLS 1F–139
DAEWOO M-150 BL2
DIAGNOSTIC TROUBLE CODE (DTC) – P0300 MULTIPLE CYLINDER MISFIRE
System Description
The Engine Control Module (ECM) monitors the crank-
shaft and camshaft positions to detect if the engine is
misfiring. The ECM looks for a quick drop in crankshaft
speed. This test is executed in blocks of 100 engine rev-
olution tests. It may take between one to several tests to
store a Diagnostic Trouble Code (DTC) and illuminate
the Malfunction Indicator Lamp (MIL). Under light misfire
conditions, it may also take more than one trip to set a
DTC. Severe misfire will flash the MIL, indicating that
catalyst damage is possible.
Conditions for Setting the DTC

Emission threshold is 3.0% for automatic transaxle
and 3.0% for manual transaxle.

20 engine cycles have occurred since cranking has
started.

A/C compressor clutch has not just engaged or disen-
gaged.

Engine load and engine speed are in a detectable re-
gion and are at or above zero torque.

Camshaft Position (CMP) sensor is in synchroniza-
tion.

Electric Exhaust Gas Recirculation (EEGR) flow
diagnostic is not in progress.

Fuel level is greater than or equal to 20% of rated
tank capacity.

Decel Fuel Cutoff (DFCO) not active.

Fuel is not shutoff from high engine speed of 6500
rpm for manual transaxle vehicle or 6500 rpm in drive
and 6250 rpm in park for automatic transaxle ve-
hicles.

Fuel is not shutoff at 255 km/h (158 mph).

An automatic transmission is not shifting.

Throttle position change is less than 3% per 125 ms.

Vehicle has not encountered an abusive engine
speed of 7000 rpm.

Crankshaft speed patters are normal.
Throttle position is less than 4% when vehicle speed
is greater than 10 km/h (6 mph).

Engine speed is between 600 and 4500 rpm.

Vehicle voltage is between 11 and 16 volts.

Engine Coolant Temperature (ECT) is between –7°C
(20°F) and 120°C (248°F).

The engine speed is less than or equal to 1800 rpm or
the crank angle sensing error has not been learned.

There is the correct ratio between Crankshaft Posi-
tion (CKP) sensor pulses and CMP sensor pulses.

DTCs P0106, P0107, P0108, P0117, P0118, P0122,
P0123, P0320, P0337, P0341, P0342 and P0502 are
not set.
Action Taken when the DTC Sets

Emission related.

“Armed” after two trip with a fail.

“Disarmed” after one trip with a pass.

MIL on if failure is detected in three consecutive trips.

Stores a History DTC on the third consecutive with a
fail (The DTC will be armed after the second fail).

Stores a Freeze Frame on the third consecutive trip
with a fail (if empty).
Conditions for Clearing the MIL/DTC

The MIL will turn off after four consecutive ignition
cycles in which the diagnostic runs without a fault.

A history DTC will clear after 40 consecutive warm up
cycles without a fault.

DTC(s) can be cleared by using the scan tool.

Disconnecting the ECM battery feed for 10 seconds.
Diagnostic Aids
An intermittent can also be the result of a defective re-
luctor wheel. Remove the CKP sensor and inspect the
reluctor wheel through the sensor mount hole. Check for
porosity and the condition of wheel. If the DTC is inter-
mittent refer to “Symptoms Diagnosis” in this section.
DTC P0300 – Multiple Cylinder Misfire
StepActionValue(s)YesNo
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Was the check performed?
–
Go to Step 2
Go to
“On-Board
Diagnostic
System Check”
2
1. Install a scan tool to the Data Link Connector
(DLC).
2. Turn the ignition ON, with the engine OFF.
3. Request Diagnostic Trouble Codes (DTCs)
Are DTCs P0201, P0202, P0203, P0204 set?
–Go to
Applicable DTC
table
Go to Step 3

1F–242 ENGINE CONTROLS
DAEWOO M-150 BL2
MAA1F280
DIAGNOSTIC TROUBLE CODE (DTC) – P0501 VEHICLE SPEED NO SIGNAL
(M/T ONLY)
Circuit Description
Vehicle speed information is provided to the engine con-
trol module (ECM) by the voltage speed sensor (VSS) is
a permanent magnet generator that is mounted in the
transaxle and produces a pulsing voltage whenever ve-
hicle speed is over 3 mph (5km/h). The A/C voltage level
and the number of pulses increase with vehicle speed.
The ECM converts the pulsing voltage into mph (km/h)
and than supplies the necessary signal to the instrument
panel for speedometer / odometer operation and to the
cruise control module and multi-function alarm module
operation. The Diagnostic Trouble Code (DTC) will de-
tect if vehicle speed is reasonable according to engine
rpm and load.
Conditions for Setting the DTC

Vehicle speed is not change at least 10 seconds.

Engine speed is greater than 2,100rpm.

MAF is greater than 152mg/tdc.
Action taken when The DTCs Sets

The Malfunction Indicator Lamp (MIL) will illuminate.

The ECM will record operating conditions at the time
the diagnostic fails. This information will be stored in
the Freeze Frame and failure records buffers.

A history DTC is stored.Conditions for Clearing the MIL/DTC

The MIL will turn off after four consecutive ignition
cycles in which the diagnostic runs without a fault.

A history DTC will clear after 40 consecutive warm up
cycles without a fault.

Using the scan tool can clear DTC(s).
Diagnostic Aids
An Intermittent problem may be caused by a poor con-
nection, rubbed through wire insulation, or wire that is
broken inside the insulation.
VSS signal circuit should be thoroughly checked for the
following conditions

Backed-out terminals

Improper mating

Broken locks

Improperly formed

Damaged terminals

Poor terminals to wire connection

Physical damage to the wiring harness
Ensure the VSS is correctly torqued to the trnasaxle
housing.
Refer to “intermittents” in this Section.

ENGINE CONTROLS 1F–289
DAEWOO M-150 BL2
Lack of Power, Sluggishness, or Sponginess (Cont’d)
StepActionValue(s)YesNo
15
Repair or replace any engine components as
needed.
Is the repair complete?
–
System OK
–
16
1. Check the Engine Control Module (ECM) grounds
for being clean, tight, and in their proper location.
2. Check the exhaust recirculation valve for being
open or partially open all the time.
3. Check the torque converter clutch operation.
4. Check the A/C system operation.
5. Check the generator output.
6. Repair the generator if the output is not within the
specified range.
Are all checks and repairs complete?
12–16 VSystem OK
–

ENGINE CONTROLS 1F–291
DAEWOO M-150 BL2
Detonation/Spark Knock (Cont’d)
StepActionValue(s)YesNo
12
1. Inspect for carbon buildup inside the engine.
2. Remove the carbon with a top engine cleaner.
Follow the instructions supplied with the product.
3. Check the basic engine parts such as the
camshaft, the cylinder head, the pistons, etc. for
excessive wear.
4. Replace any excessively worn parts.
Is the procedure complete?
–
Go to Step 13
–
13
1. Check the exhaust gas recirculation valve for
proper operation.
2. Check the air intake system for proper operation.
3. Check the torque converter clutch operation and
transaxle shift points.
4. Check the service bulletins for Programmable
Read Only Memory (PROM) updates.
5. Check the cylinder compression.
6. Repair or replace any faulty components.
Are all checks and repairs complete?
–
System OK
–

FRONT SUSPENSION 2C–5
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
STRUT DAMPENER
A strut dampener is basically a shock absorber. However, strut dampeners are easier to extend and retract by hand
than are shock absorbers. Strut dampeners are used only on the front in most vehicles, including this vehicle. Shock
absorbers are used on the rear wheels.
Condition Probable cause Correction
Struts Seem Weak
Improper tire pressures.
Adjust the tire pressures to the speci-
fications on the tire placard.

Abnormal load conditions.
Consult with the owner to confirm the
owner’s understanding of normal load
conditions.

Improper compression and rebound
effectiveness of the strut dampener.
Quickly push down and then lift up on
the corner of the bumper nearest the
strut dampener being tested.

Compare the compression and re-
bound with those of a similar vehicle
that has an acceptable ride quality.

Replace the strut dampener, if need-
ed.
Struts are Noisy
Loose or damaged mountings.
Tighten the strut dampener.

Replace the strut dampener if need-
ed.

Improper compression and rebound
effectiveness of the strut dampener.
Quickly push down and then lift up on
the corner of the bumper nearest the
strut dampener being tested.

Compare the compression and re-
bound with those of a similar vehicle
that has an acceptable ride quality.

Replace the strut dampener, if need-
ed.
Leaks
A slight trace of fluid.
The strut dampener is OK.

Leaks of the seal cover on the fully
extended strut.
Replace the strut dampener.

Excessive leaks of fluid on the strut
dampener.
Replace the strut dampener.
BALL JOINT AND KNUCKLE
Ball Joint Inspection
1. Raise the front of the vehicle to allow the front sus-
pension to hang free.
2. Grasp the tire at the top and the bottom.
3. Move the top of the tire in an in-and-out motion.
4. Look for any horizontal movement of the knuckle rela-
tive to the control arm.
5. Control arms assembly must be replaced if the follow-
ing conditions exist:

The joint is loose.

The ball seal is cut.

The ball stud is disconnected from the knuckle.
The ball stud is loose at the knuckle.

The ball stud can be twisted in its socket with finger
pressure.Ball Stud Inspection
Make sure to check the tightness of the ball stud in the
knuckle boss during each inspection of the ball joint.
One way to inspect the ball stud for wear is to shake the
wheel and feel for movement of the stud end or the cas-
tellated nut at the knuckle boss.
Another way to inspect the ball stud for wear is to check
the fastener torque at the castellated nut. A loose nut can
indicate a stressed stud or a hole in the knuckle boss.
Worn or damaged ball joints and knuckles must be re-
placed.

2C –6 FRONT SUSPENSION
DAEWOO M-150 BL2
FRONT WHEEL BEARING
Bearing Axial End Play Inspection
D107B303
1. Lift and suitably support the vehicle.
2. Inspect the end play of the bearing.
3. If excessive play is defeeted, free shoes from the disc
or remove the calipers.4. Check the standard torque of the drive nut (spec. :
210 Nm (155 lb-ft)).
5. Check the bearing end play according to the following
method.

Place a dial guage against the disc surface, grasp
the disc.

Using a push–pull movement, note gage readings.
Specification
0.130mm
or less
(0.005 in)Standard tighting torque
of drive shaft nut :
210 Nm (155 lb-ft)
6. If the axial end play of the front wheel bearing exceed
0.130mm torque the drive shaft nut successively
(Max. allowance : 240 Nm (177 lb-ft))
7. Check the axial end play again.
8. If the axial end play is above spec., replace the front
wheel bearing.

REAR SUSPENSION 2D–5
DAEWOO M-150 BL2
CHECKING THE REAR WHEEL
BEARING END PLAY
1. Release the parking brake.
2. Raise the vehicle.
3. Check the wheel bearing play by moving the top and
the down of the tire in an in–and–out motion.
D106C301

Rear Wheel Bearing Play

0 mm (0 in.)
4. If the bearing play is high, tighten the castellated nut.
5. If the bearing play is high after tightening, replace the
wheel bearing.
REAR WHEEL BEARING FREE LOAD
1. Release the parking brake.
2. Raise the vehicle and rotate the wheel.
3. Remove the wheels.
4. Check the torque when the hub moves by a spring
scale.

Standard (No Load)

0.137 – 0.422 Nm
(0.9 – 3.7 lb-in)
D106C302
5. If the checked torque exceeds the specification, tight-
en the castellated nut.
6. If the checked torque exceeds the specification after
tightening, replace the wheel bearing.