2003 DAEWOO MATIZ fuel filter

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Page 101 of 1184

DAEWOO MATIZ 2003  Service Repair Manual ENGINE CONTROLS  1F–3
DAEWOO M-150 BL2
DTC P1628 Immobilizer No Successful  
Communication 1F-270. . . . . . . . . . . . . . . . . . . . . . . 
DTC P1629 Immovilizer Wrong Computation 1F-272
DTC P06

Page 108 of 1184

DAEWOO MATIZ 2003  Service Repair Manual 1F–10  ENGINE CONTROLS
DAEWOO M-150 BL2
fuels use alcohol to increase the octane rating of the
fuel. Although alcohol-enhanced fuels may raise the oc-
tane rating, the fuel’s ability to turn into

Page 125 of 1184

DAEWOO MATIZ 2003  Service Repair Manual ENGINE CONTROLS  1F–27
DAEWOO M-150 BL2
Engine Cranks But Will Not Run (Cont’d)
StepActionValue(s)YesNo
21
1. Check for any damages or poor connection in
ignition wires and repair as needed.
2. Co

Page 126 of 1184

DAEWOO MATIZ 2003  Service Repair Manual 1F–28  ENGINE CONTROLS
DAEWOO M-150 BL2
Engine Cranks But Will Not Run (Cont’d)
StepActionValue(s)YesNo
33
Replace the fuel pump sender, the in-tank fuel filter,
and/or the fuel coupling hoses as

Page 208 of 1184

DAEWOO MATIZ 2003  Service Repair Manual 1F–110  ENGINE CONTROLS
DAEWOO M-150 BL2
DTC P0172 – Fuel Trim System Too Rich
StepActionValue(s)YesNo
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Is the system check complete?
–

Page 384 of 1184

DAEWOO MATIZ 2003  Service Repair Manual 1F–286  ENGINE CONTROLS
DAEWOO M-150 BL2
SURGES OR CHUGGLES
Definition: Engine power variation under steady throttle
or cruise. Feels like the vehicle speeds up and slows
down with no change in the

Page 385 of 1184

DAEWOO MATIZ 2003  Service Repair Manual ENGINE CONTROLS  1F–287
DAEWOO M-150 BL2
Surges or Chuggles (Cont’d)
StepActionValue(s)YesNo
13
Repair the electrical connections or the vacuum
lines as needed.
Is the repair complete?
–
System

Page 386 of 1184

DAEWOO MATIZ 2003  Service Repair Manual 1F–288  ENGINE CONTROLS
DAEWOO M-150 BL2
LACK OF POWER, SLUGGISHNESS, OR SPONGINESS
Definition: The engine delivers less than expected pow-
er. There is little or no increase in speed when the accel
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