Erratic Idle - Warm-Up

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1994 Plymouth Sundance, 1994 Plymouth Acclaim, 1994 Eagle Vision, 1994 Dodge Spirit, and 1994 Dodge Shadow. However, it is still accessible from the selected car via links, so may be relevant.

Check throttle position sensor and connector.
Check coolant temperature sensor and connector.
Ensure spark plugs are not fouled.
Check ignition and sensor wires for proper connection.
Check distributor (if applicable).
Check ignition and coil circuit.
Check intake system.
Check crank and cam sensors (DIS system).
Check MAP sensor.
Check for contaminated fuel.