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Home >> Chevrolet >> 1998 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Ignition System >> Timing Control Systems >> Electronic Ignition Timing Inspection
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Electronic Ignition Timing Inspection

  1. Start and warm engine to normal operating temperature. Turn off all accessories. Install scan tool. Using scan tool, monitor engine RPM parameter. With transaxle in Neutral, ensure idle speed is 650-750 RPM. Turn ignition to LOCK position. Connect timing light to No. 1 spark plug wire.
  2. Connect timing light according to manufacturer's instructions. Connect a fused jumper wire between terminals E1 and TE1 of Data Link Connector (DLC) in engine compartment. See Figure . Start engine and aim timing light at timing mark. Notch on crankshaft pulley should align at 8-10 degrees BTDC on timing indicator at each flash of timing light.
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