EXCESSIVE HC & NOx
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 for gasoline in oil.
- Check for leaky fuel injectors.
- Check for faulty oxygen sensor.
- Check ignition and sensor wires for poor connection.
- Check EGR valve operation.
- Check crank and cam sensors (DIS system).
- Check throttle position sensor and connector.
- Check for vacuum leaks.