Suzuki Esteem, Swift 1994-02

Adjustment

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Ignition timing is controlled by the Electronic Control Module (ECM). The ECM receives signals from various sensors mounted on the engine. No ignition timing adjustment is possible.

1.3L & 1.6L Engines



Ignition timing is controlled by the Electronic Control Module (ECM). No adjustment is necessary or possible.

1.3L Engine




NOTE
Before starting engine, place transmission gear shift lever in -Neutral- (shift selector lever to -P- range for A/T model), and set parking brake.

  1. When using SUZUKI scan tool, connect SUZUKI scan tool to DLC with ignition switch OFF.
  2.  
  3. Start engine and warm it up to normal operating temperature.
  4.  
  5. Make sure that all of electrical loads except ignition are switched off.
  6.  
  7. Check to be sure that idle speed is within 800-900 rpm specification.
  8.  
  9. Set timing light to No.1 high-tension cord.
  10.  
  11. Fix ignition timing to initial one as follows:

    When using SUZUKI scan tool, select -MISC- mode on SUZUKI scan tool and fix ignition timing to initial one.
     
    When not using SUZUKI scan tool, disconnect scan tool from DLC if connected and connect D and E terminals of monitor connector by using service wire so that ignition timing is fixed on initial one.

    Click image to see an enlarged view

    Fig. Monitor connector (1), located next to front strut of left side (2)-1994-97 1.3L engine

     

  12.  
  13. Using timing light, check that timing is at 5° BTDC at idle speed (test switch terminal grounded).
  14.  
  15. If ignition timing is out of specification, loosen flange bolts, adjust timing by turning distributor assembly while engine is running, and then tighten bolts to 11 ft. lbs. (15 Nm).
  16.  
  17. After tightening distributor flange bolts, recheck that ignition timing is within specification.
  18.  
  19. After checking and/or adjusting Initial Ignition Timing, release ignition timing fixation by SUZUKI scan tool or disconnect service wire from monitor connector.
  20.  
  21. With engine idling (test switch terminal ungrounded, CTP switch ON and car stopped), check that ignition timing is about 8° BTDC. (Constant variation within a few degrees from 8° indicates no abnormality but proves operation of electronic timing control system.) Also, check that increasing engine speed advances ignition timing.
  22.  
  23. If above check results are not satisfactory, check CTP switch, test switch terminal circuit and ECM.
  24.  

1.6L Engine




NOTE
Before starting engine, place transmission gear shift lever in -Neutral- (shift selector lever to -P- range for A/T model), and set parking brake.

  1. When using SUZUKI scan tool, connect SUZUKI scan tool to DLC with ignition switch OFF.
  2.  
  3. Start engine and warm it up to normal operating temperature.
  4.  
  5. Make sure that all of electrical loads except ignition are switched off.
  6.  
  7. Check to be sure that idle speed is the following:

    700-800 rpm (M/T)
     
    750-850 rpm (A/T)
     

  8.  
  9. Set timing light to No.1 high-tension cord.
  10.  
  11. Fix ignition timing to initial one as follows:

    When using SUZUKI scan tool, select -MISC- mode on SUZUKI scan tool and fix ignition timing to initial one.
     
    When not using SUZUKI scan tool, disconnect scan tool from DLC, and connect test switch and ground terminals of Diag-1 connector by using service wire so that ignition timing is fixed on initial one.

    Click image to see an enlarged view

    Fig. Test switch terminal (1), ground terminal (2) and Diag-1 connector (3)-1995-97 1.6L engine

     

  12.  
  13. Open air cleaner upper case and shift upper case and hose position to observe ignition timing.
  14.  
  15. Using timing light, check that timing is at 5° BTDC at idle speed (test switch terminal grounded or fixed with SUZUKI scan tool).
  16.  
  17. If ignition timing is out of specification, loosen flange bolts, adjust timing by turning distributor assembly while engine is running, and then tighten bolts to 11 ft. lbs. (15 Nm).
  18.  
  19. After tightening distributor flange bolts, recheck that ignition timing is within specification.
  20.  
  21. After checking and/or adjusting initial ignition timing, release ignition timing fixation by using SUZUKI scan tool or disconnect service wire from Diag-1 connector.
  22.  
  23. With engine idling (test switch terminal ungrounded, CTP switch ON and car stopped), check that ignition timing is about 12° BTDC. (Constant variation within a few degrees from 12° indicates no abnormality but proves operation of electronic timing control system.) Also, check that increasing engine speed advances ignition timing.
  24.  
  25. If above check results are not satisfactory, check CTP switch, test switch terminal circuit and ECM.
  26.  
  27. Install air cleaner upper case.
  28.  

1.8L Engine




NOTE
Before starting engine, place transmission gear shift lever in -Neutral-, and set parking brake.

  1. Detach timing hole cover.
  2.  
  3. If you have SUZUKI scan tool, perform the following:


    1. Connect SUZUKI scan tool.
    2.  
    3. Start engine and warm it up to normal operating temperature.
    4.  
    5. Make sure that all of electrical loads except ignition are switched OFF.
    6.  
    7. Check to be sure that idle speed is within the following specification:

      700-800 rpm
       

    8.  
    9. Fix ignition timing by using -FIXED SPARK- mode of SUZUKI scan tool.

      Click image to see an enlarged view

      Fig. Monitor connector (Diag-1) (1) and relay box (2)-1.8L engine

    10.  

  4.  
  5. If you are NOT using the SUZUKI scan tool, perform the following:


    1. Open relay box.
    2.  
    3. Connect -D- and -E- terminals of monitor (Diag.-1) connector or -E- to body by using service wire so that ignition timing is fixed on initial one.
    4.  
    5. Set timing light to No.1 ignition harness.

      Click image to see an enlarged view

      Fig. Timing light (A), timing marks on clutch housing (1), timing marks on torque converter housing (2), timing marks (3)-1.8L engine

    6.  
    7. Using timing light, check that timing is 5° BTDC (at idle speed).
    8.  
    9. If ignition timing is out of specification, loosen flange bolts, adjust timing by turning CMP sensor while engine is running, and then tighten bolts to 11 ft. lbs. (15 Nm).

      Click image to see an enlarged view

      Fig. CMP sensor (1) and flange bolts (2)-1.8L engine

    10.  
    11. After tightening bolts, recheck that ignition timing is within specification.
    12.  

  6.  
  7. After checking and/or adjusting, disconnect service wire from monitor (Diag.-1) connector or release fixed ignition timing and disconnect SUZUKI scan tool from DLC.
    CAUTION
    Driving with test switch terminal grounded will cause damage to catalyst. Be sure to disconnect service wire after adjustment.

  8.  
  9. With engine idling (test switch terminal ungrounded, closed throttle position switch ON and vehicle stopped), check that ignition timing vary more or less of initial ignition timing (about 8°). Also, check that increasing engine speed advances ignition timing.
  10.  
  11. If check results are not satisfactory, check TP sensor, test switch terminal circuit and ECM.
  12.  

 
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