Question about 2001 Hyundai Sonata

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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?

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  • Anonymous Mar 14, 2014

    it will not stay stated

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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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I have two codes come up when checking why my check engine light is on. P0447 and P0420. Any info on what these mean and what it takes to fix so I can pass my smog test??


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Definition of P0420 is catalyst below threshold. This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). Catalytic converters are not normally a "wear" type item, that is they are not deisgned to wear out and need replacement. If they have failed, it is likely due to something else that caused it to fail.

P0447 Evaporative Emission Control System Vent Valve/Solenoid Circuit Open. The Powertrain Control Module (PCM) has detected an open within the circuit that controls the vent valve or solenoid for evaporative emission systems vapor.

Read more at: http://www.obd-codes.com/p0447
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Jan 26, 2016 | Hyundai Motor 2002 Elantra

1 Answer

What is this code P1507 mean? Comes up on a 2006 Hyundai Sonata.


All this means is that your car will not pass an OBD 2 emissions test.
P-powertrain
1-MFG: manufacturer specific
5- vehicle speed control and idle control system
07- Hyundai 07 fault code.

Dec 17, 2015 | 2006 Hyundai Sonata

1 Answer

What does mil cmd fail mean?


MIL is your malfunction indicator lamp, (check engine light)

CMD is the computer interface port, or OBDII port indicating a malfunction communicating with your cars computer

check all the fuses, primarily any marked pcm and retest your vehicle
note: your check engine or MIL has to be on in KOEO state (key on engine off), if the bulb is burned out everything will still work and the OBDII test computer will show MIL status ON, and if you don't have a computer to tell you that, you must get that light to light in the koeo state.

Aug 25, 2014 | Saturn Ion Cars & Trucks

1 Answer

2001 Ford Ranger 4 cylinder failed Emissions Test because MIL Commanded-ON failed. What do I do to repair or pass test?


so the mil is commanded on and yet you have no DTCs give an detailed account of the report for best results

Dec 07, 2012 | Dodge Stratus Cars & Trucks

1 Answer

Need to reset the computer codes to the emission sensors on a 2008 Hyundai Sonata


What mechanic?

Inspection Stations have no mechanics

A state licenced repair shop wouldn't have an problem
with that.

They would make the repair & move on to pass the vehicle

No one understands, there is no resetting codes, as a fix
for anything. If that was the case, the mechanic would have done so

You can clear them & then they come back, or you
have no data to diagnose the reason they came on

A car is in no way related to window 7 or any computer
technolgy. The car has a processor called an ECM or PCM

Aug 01, 2012 | 2008 Hyundai Sonata

1 Answer

Hyundai Tiburon P0447


You can try disconnecting the battery for a minute then driving about 15-20 miles on the highway while trying to stay at about 55. This will often rebalance the sensors in the emissions system. Note: you must drive the minimum distance required by your ECU, or you'll fail inspection automatically due to lack of adequate feedback from your your OBD.

May 28, 2012 | 2001 Hyundai Tiburon

1 Answer

Did not pass state inspection (vehicle)


First the fault codes,
U110C is No Fuel Level Bus Message
U0155 is No Cluster Bus Message.
Unfortunatly you have to be able to communicate with the instrument cluster with your scanner to diagnoise and I do not think an aftermarket scanner can do this.




Mar 02, 2010 | 2005 Chrysler PT Cruiser

2 Answers

01 sonata gls v6...code po455, po442. what are these and how can I pass emissions test in arizona


If you have an EVAP leak, you will get the following codes:

1. P0442 evap emission control system leak (small).
2. P0455 evap emission control system leak (large).

If these codes come up, you need to trace the leak. The most common place for the systems to leak besides the gas cap is at the service port under the hood, the hoses at the purge solenoid, and the hoses around the fuel tank. Check all your EVAP hoses from under the hood , all the way back to the gas tank. You can repair a split hose easily. Buy some 14.5mm EVAP hose at the auto parts store. Just cut the split or cracked section out and attach the new hose.

I can only say that u must fix the code issue and light to pass state emission test, if u reset the light they will know, the system will tell the tester that the system is not ready, this will cause a fail.

Mar 16, 2009 | 2001 Hyundai Sonata

1 Answer

2002 Hyundai Sonata wont pass smog


CA you can take the car to a referree and get a one time waiver if you have spent a minimum of $450 on repairs not including smog fees. Gives you two years to get it fixed. Smog Referee Call Center
Toll Free: 1.800.622.7733
You can also sell the car to the state for "up to" $1,000

Aug 19, 2008 | Hyundai Motor 2002 Sonata

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