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Ignition Timing

All models are equipped with Powertrain Control Module (PCM) computerized ignition. PCM controls ignition timing. DO NOT attempt to adjust ignition timing by rotating distributor (2.5L) or oil pump drive shaft assembly (4.0L). If distributor or oil pump drive is rotated or replaced, fuel system synchronization will be changed. To synchronize fuel system, see FUEL SYSTEM SYNCHRONIZATION under FUEL SYSTEMS in ON-VEHICLE ADJUSTMENTS article.