2.2L EFC System: Testing: Notes

NOTE: Do not remove grease from harness connectors or connector cavities in computer. The grease is used to prevent moisture from corroding the terminals. If there is not at least 1/2" of grease on bottom of computer connector cavities, apply liberal amount of Mopar multi-purpose grease (No. 2932524 or equivalent) over entire end of connector plug before reinstallation.

A malfunction in the EFC system 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: The Spark Control Computer controls ignition timing as well as air/fuel mixture. Before testing EFC system, perform Electronic Spark Control test.