Emissions Compliance: Notes

Canada and some states or metropolitan areas in the United States require periodic emission, or Inspection/Maintenance (I/M) tests. All Ford products have been designed to pass these tests. If a Ford product fails an I/M test, it is probable that the engine temperature was not warm and stabilized prior to the test or the vehicle had idled excessively long prior to the test. Before starting any services, verify complaints of idle emission test failure.

The following encompasses most of the emissions measurement modes of current state idle test procedures:

• Ensure engine is at normal operating temperature and all accessories are turned off.
• Check emissions at idle.
• Operate engine at 2500 RPM.
• Check emissions within 30 seconds.
• Return engine speed to idle.
• Check emissions within 30 seconds.

If any emission component is changed, Keep-Alive Memory (KAM) should be cleared before repeating state emission test procedure. To clear KAM, disconnect negative battery terminal for at least 5 minutes. See appropriate article:

For Contour & Mystique 2.0L, see TESTS W/CODES - 2.0L .

For Contour & Mystique 2.5L, see TESTS W/CODES - 2.5L .

For Windstar, see TESTS W/CODES .

To relearn adaptive strategy, see COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section.