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Home >> Ford >> 1994 >> Ranger Base, 2D Pickup Extra Cab, 2.3 A >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes >> Symptoms >> Diagnostic Sub-Routines >> Ignition Timing
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Ignition Timing

  1. Turn ignition off. Place transmission in Park or Neutral. Turn off all electrical loads. Disconnect in-line Spark Output (SPOUT) connector. Start engine (DO NOT use a remote starter).
  2. On 2.3L engine with Dual Plug Ignition (DPI), use exhaust side spark plug. Start engine and warm to normal operating temperature. With engine at idle speed, check initial (base) timing.
  3. Turn ignition off. Reconnect IAC solenoid or single-wire SPOUT connector. Check ignition timing advance to verify distributor is advancing beyond initial setting. Disconnect test equipment.
    NOTE: Electronic Ignition (EI) low data rate and high data rate systems cannot be adjusted. Check Camshaft Driven (CMP) Hall sensor, synchronizer sensor orientation, timing belt/chain, etc.
  4. If timing is not within 2 degrees of specification on emission label, adjust timing as necessary. If unable to adjust timing to specification, check engine mechanical condition (distributor orientation, timing belt/chain, etc.).
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