Question about 2001 Hyundai Sonata
Won't pass state emissions MIL command status failed with a fault code P0447...what is this and how do I correct it?
The evaporative emissions system prevents
hydrocarbon (HC) vapors from the fuel tank from escaping into the
atmosphere where they could form photochemical smog. Gasoline vapors
are collected in the charcoal canister. The Canister Closing Valve
(CCV) closes off the air inlet into the canister for leak detection of
the evaporative emission system. The CCV also prevents fuel vapors from
escaping from the canister. When the engine purges the HC vapors from
the canister, the clean air comes into the canister through the
canister air-filter and the CCV.
1. Ignition "OFF". 2. Disconnect CCV connector. 3. Measure resistance between terminals 1 and 2 of the CCV connector(Component side). Specification : Approx. 23~26Ω at 20°C(68°F)
4. Is resistance within the specification? YES ▶ Go to next step as below. NO ▶ Check CCV for contamination, deterioration, or damage. Substitute with a known-good CCV and check for proper operation. If the problem is corrected, replace CCV and then go to "Verification of Vehicle Repair" procedure.Terminal and Connector Inspection
Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Posted on Sep 06, 2008
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Posted on Jan 02, 2017
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