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Home >> Volkswagen >> 1993 >> EuroVan CV, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments >> Ignition Timing >> 5-Cylinder Ignition Timing

5-Cylinder Ignition Timing

  1. Start and warm engine to normal operating temperature. Ensure engine oil temperature is at least 176°F (80°C). Ensure A/C and electrical loads are off, including cooling fan.
  2. Remove splash shield from distributor. Connect Engine Analyzer (VAG 1367) and Inductive Pick-Up (VAG 1367/8) to engine. Connect Scan Tester (VAG 1551) to Data Link Connectors (DLC) located in fold-down storage shelf in front of relay panel.
  3. Ensure no Diagnostic Trouble Codes (DTC) are stored. Ensure throttle cable and closed throttle position switch are properly adjusted. Ensure idle air control valve is okay. Valve must vibrate or hum. Ensure exhaust system has no leaks.
    NOTE: Some EuroVan engines require the use of TDC sensor and Adapter (VAG 1367/9). On engines having crankshaft position sensor, Ignition Tester (VAG 1367) and Adapter (VAG 1367/9) can be connected to these engines without removing distributor cap.
  4. Start engine and let it run at closed throttle (less than 1500 RPM). Operate scan tester and observe display. Press "1" button to select RAPID DATA TRANSFER function.
  5. Press "0" and "1" buttons to select ENGINE ELECTRONICS function. Press "Q" button to enter input. Press right arrow button, then "0" and "4" buttons to select BASIC ADJUSTMENT function. The Engine Control Module (ECM) should control idle speed.
  6. Press "0" button TWICE to select INDICATOR GROUP NUMBER input. Press "Q" button to enter input. Scan tester will display SYSTEM IN BASIC ADJUSTMENT 1 through 10 or FUNCTION UNKNOWN/OR CANNOT BE CONDUCTED AT THIS TIME.
  7. If the latter is displayed, ensure coolant temperature is 185°F (85°C). Check for idle speed in excess of 1500 RPM. Basic adjustment function using scan tester is not possible. Correct condition(s) as necessary.
  8. If scan tester enters basic adjustment function, disconnect Blue Engine Coolant Temperature (ECT) sensor. Check ignition timing. Timing mark is on flywheel. Timing pointer is on timing hole on transaxle bellhousing.
  9. If necessary, adjust ignition timing by rotating distributor. Ensure radiator cooling fan is not running during adjustment. After adjustment, press right arrow button to end basic adjustment.
  10. Using scan tester, activate and erase DTCs. This will erase stored DTC set when ECT sensor was disconnected. Check and adjust idle speed if necessary. See IDLE SPEED & MIXTURE.
  11. After adjustments, press "0" and "6" buttons to select END DATA TRANSFER function. Press "Q" button to enter input. Allow engine to cool. Disconnect test equipment. Install distributor splash shield. Remove TDC sensor and adapter from bellhousing (if installed).
NOTE: To check ignition timing advance on EuroVan, ensure ignition timing is correctly set. With vehicle/scan tester NOT in basic adjustment function, increase engine speed to slightly over 2200 RPM. See IGNITION TIMING ADVANCE table.
IGNITION TIMING ADVANCE (Degrees BTDC @ RPM)

Application Specification
EuroVan
California (1) 15-38 @ 2200
Other 49 States (1) 26-36 @ 2200
(1) Vehicle NOT in BASIC ADJUSTMENT mode, engine oil temperature 176°F (80°C) and Blue engine coolant temperature sensor connected.
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