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

SOURCE: 2001 hyundai sonata

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.

SOURCE: 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

Marvin

• 85242 Answers
• Posted on Mar 16, 2009

SOURCE: 01 sonata gls v6...code po455, po442. what are

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.

SOURCE: Code P0300 and tach is dropping but engine speed is not

I researched your problem and couldn't find any Service Bulletins or Recalls or Campaigns related to it. It seems, you'll have to take it into a Hyundai Service Center and pay the diagnostic fee to find out what's wrong. They'll give you an estimate of repairs (parts, labor, tax, time-frame, etc.) You can decide what you want to do then.
By the way, the symptom you describe could be fuel, electrical or both.

SOURCE: 2005 hyundai sonata - no warranty

go to autozone buy a repair manual.its about.$24.00 dollars.it will show you show you how to do your own repair.you go buy the egr valve and tps sensor.now on the egr valve make sure the port in the intake where the egr valve is not stop up with carbon.if so becareful and easy cleaning out the carbon using a piece of clothes rack .clean up the debris.reason so because egr valve is not cheap.i seen them from $250.00 and up.you dont want to buy one if you dont need it.