Preliminary Testing
EFC malfunction may result in engine surge, hesitation, rough idle and/or poor fuel economy. Before making any tests, check all vacuum and electrical wiring for proper routing and connections, and check for exhaust and intake manifold leaks. If these are in order, testing may begin.
NOTE:
Systems must be tested in order as listed below. In addition, the Air Switching System must be working properly. See Chrysler Corp. Air Switching System article in this section.