Idle Speed & Ignition Timing
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1999 Dodge Ram Wagon, 1999 Dodge Ram Van, 1999 Dodge Pickup, 1999 Dodge Durango, and 1999 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
Idle speed and mixture are controlled by Powertrain Control Module (PCM). No adjustment is required. PCM controls Idle Air Control (IAC) motor for proper idle speed. See TEST TC-25A in appropriate SELF-DIAGNOSTICS article.
Ignition timing is controlled by PCM and is nonadjustable. If vehicle is equipped with a distributor, DO NOT attempt to adjust timing by rotating distributor. If distributor is rotated, fuel system synchronization will be changed. If distributor is rotated or removed, check fuel system synchronization. See FUEL SYSTEM SYNCHRONIZATION under FUEL SYSTEM in ON-VEHICLE ADJUSTMENTS - TRUCKS & RWD VANS - CNG & GASOLINE article.