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Home >> Jeep >> 1997 >> Wrangler Sahara, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Adjustments - 4.0L Engine >> Ignition Timing

Ignition Timing

NOTE: Ignition timing is controlled by Powertrain Control Module (PCM). No adjustment is required.

Ignition timing is nonadjustable. DO NOT  attempt to adjust ignition timing by rotating distributor. If distributor is rotated or replaced, fuel system synchronization will be changed. To synchronize fuel system, see FUEL SYSTEM SYNCHRONIZATION under FUEL SYSTEM.

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