Routine 222 - State Emission Test Failure

NOTE: Canada and some states or metropolitan areas in the United states require periodic Idle Emission Tests. All Ford products have been designed to pass these tests. If a Ford product fails an Idle Emission Test, it is probable that 1) The engine temperature was not warm and stabilized prior to the test. 2) The vehicle had Idle excessively long prior to the test.

Prior to starting any repairs, complaints of Idle Emission Test failure should be verified. The following example encompasses most of the emissions measurements modes of the current state Idle test procedures:

Ensure that the engine is at normal operating temperature and that all accessories are turned off.
Read emissions at Idle.
Run engine at 2500+* 300 RPM.
Read emissions within 30 seconds.
Return engine Speed to Idle.
Read emissions within 30 seconds.

If any emission Components are replaced, Keep Alive Memory (KAM) should be cleared before repeating State Emission Test procedure. Refer to Quick Test Appendix.

STATE EMISSION TEST FAILURE

SYSTEM & COMPONENT(S)	GO TO:
EEC Quick Test	See TESTS W/CODES
IGNITION Scope Engine for: Spark, Plug, Coil, Secondary Wires, Distribution Cap, Adapter & Rotor Timing	See BASIC TESTING
VACUUM DISTRIBUTION Vacuum Leaks/blockage	Perform a visual & audible inspection
FUEL CHARGING ASSY Curb or Fast Idle Speeds, Electrical & Vacuum Connections	See SYSTEM/COMP TESTS See ADJUSTMENTS Perform a visual inspection
FUEL DELIVERY Injectors, Fuel Rail	See SYSTEM/COMP TESTS
EGR Valve, Vacuum Regulator	See SYSTEM/COMP TESTS
PCV Valve	See SYSTEM/COMP TESTS
EVAP Carbon Canister, Purge Solenoid	See SYSTEM/COMP TESTS
THERMACTOR Thermactor Air dump	See SYSTEM/COMP TESTS
EXHAUST Pipes, Muffler, Catalyst Resonator, Heat Control Valve	Check Exhaust System
COOLING Unstabilized Engine Temperature	Go to routine 218
BASIC ENGINE Scheduled maintenance, compression, Valve Train, Camshaft, Intake Manifold Gaskets	See BASIC TESTING Check engine mechanical condition