Question about Hyundai Motor 2004 Sonata

Open Question

Emissions test comes up not ready - can't pass inspection

Mechanics can't reset the computer for emission testing. I replaced the oxygen sensor. I was told to drive the car to clear the computer. Will I be able to drive it according to the "driving cycle" to clear it? If so, what is the driving cycle. Hyundai has not been able to help. Has this been a problem that has come up with other Hyundai Sonatas

Posted by on

  • 1 more comment 
  • R0YAL05 Dec 11, 2008

    EGR FLOW, OXYGEN SENSORS AND CATALYTIC CONVERTER READ NOT READY. THE EMISSION DEPT. KEEPS TELLING ME TO DRIVE IT MORE. IT STILL HASN'T RESET AND KNOW I'M FORCED TO PARK IT OR DRIVE ILLEGALY . HOW MUCH MORE DO I DRIVE IT.

  • Anonymous Jan 15, 2009

    I have the same problem. My LR Freelander was parked for 5 months for engine work, etc., and now can't pass inspection because on emissions testing it says not ready. I've been told to drive it more, but now i get tickets when parked...

  • Anonymous Mar 09, 2009

    I have the same problem on a 1999 saturn.Will not pass inspection check engine light is off ,but how do I got through the drive cycle

×

2 Suggested Answers

  • 1 Answer

SOURCE: emissions test comes up not ready - can't pass inspection

I had a 2001 toyota camry and I couldn't passed the emission test but my friend told me about Xtreme Fuel Treatment and I went back and passed emission. I've also seen improvement in my gas mileage. I brought it at https://creid.gosyntek.com. Test it out and see for yourself

Posted on Nov 05, 2009

  • 69 Answers

SOURCE: emissions test comes up not ready - can't pass inspection

Under the hood, there is a fuse block. I believe it is on the driver's side of your vehicle. Open that box, and pull the "ECU" fuse. Leave the fuse out for at least 5 minutes. Put the fuse back in, start the car, and let it idle for at least another 5 minutes. Do not drive the car, touch the gas, or even look at the gas pedal for these 5 minutes, as the ECU is remapping itself. This will properly reset the ecu and clear the codes. After this you may drive the car.

Posted on May 28, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2004 dodge stratus 2.4L not passing emissions test why Emission saying Catalyst Not Ready Oxygen Sensor Not Ready I put 375 highway miles on the car, hopping this will pass it.


Again, TOO LITTLE INFO!!!

could be a non operating oxygen sensor heating, check connector and damaged wiring, as it is posible to damage wiring or connector at this very hot plecement. Amclaussen.

Sep 27, 2013 | 2004 Dodge Stratus

2 Answers

Engine Check light


Take it to autozone or another place like it and have them read the codes and tell us what they are.

Jun 19, 2013 | 2011 Jeep Wrangler Sport

2 Answers

My service engine light came on and when tested it came up as the heated oxegen sensor.. how important, and what time frame do i have before it is critical?


the heater just gets the oxygen sensor working as soon as possible, the quicker it works, the quicker it controls the engine, so it affects emissions and mileage. You can put it off, but it needs to be fixed.

Dec 03, 2010 | 2007 Mitsubishi Eclipse

1 Answer

I can not get my 97 saturn SL1 to pass emission i have changed an oxygen sensor and cleared codes the emissions place tell me to drive it because the monitors are not ready for the oxygen sensor and...


When all the monitors have run their tests then it will pass emmissions providing that your repairs were successfull...You need to drive it for at least 75 miles so that it can complete its tests....

Feb 13, 2010 | 1991 Saturn SL1

1 Answer

Starting for 1999 Saturn SC


I had a similar problem. My 99 Saturn SL1 would crank and crank but would not start. I'd step on the gas repeatedly when it seemed like it was about to start. I got a new battery, alternator, complete tune up and nothing helped. As an aside, my flunked the emissions test and I had to go to a shop and have it hooked up to a computer for diagnosis. They found many things wrong and I ended up changing the oxygen sensor and the catalitic converter because the mechanic said that these were the most important things to fix so that the car could pass the emissions test. My car passed the emissions test Also I no longer had problems with starting the car. Replace your oxygen sensor.

Sep 30, 2009 | 1999 Saturn SL

2 Answers

On-board computer not ready for emission inspection 02 ford taurus. replaced battery 1 month ago


This is the biggest flaw in emissions testing. It takes 4 tanks of fuel and 1000 miles of wasteful driving to reset the computer on the FORD TAURUS (I've got a 2000). So much for pollution control!

Sep 14, 2009 | 2002 Ford Taurus

2 Answers

Emissions test comes up not ready - can't pass inspection


Under the hood, there is a fuse block. I believe it is on the driver's side of your vehicle. Open that box, and pull the "ECU" fuse. Leave the fuse out for at least 5 minutes. Put the fuse back in, start the car, and let it idle for at least another 5 minutes. Do not drive the car, touch the gas, or even look at the gas pedal for these 5 minutes, as the ECU is remapping itself. This will properly reset the ecu and clear the codes. After this you may drive the car.

May 28, 2009 | Hyundai Motor 2004 Sonata

2 Answers

Improper fuel combustion; need to pass emissions test


Sounds like you need to replace your oxygen sensors.  If you have a four cylinder I think you only have one oxygen sensor and the six cylinder I know has 2.  You can check that out at your local parts store.  Anyway, the oxygen sensor helps the computers in your car make sure that you are getting the correct amount of fuel and air during combustion thus controlling your emissions.  I would think that if you haven't replace these in a while that is what is probably keeping you from passing your test.  Change the oxygen sensors and put a bottle of good fuel injector cleaner in a full tank of gas and you should be good to go.  I would suggest Greased Lightening fuel injector cleaner that can be purchased at Napa and O'Reilley Auto Parts.  Let me know if you have any other questions.  Thanks for an honest rating and for using FixYa!

May 24, 2009 | 1995 Ford Contour

1 Answer

Can't pass emissions inspection


TRY DISCONNECTING THE BATTERY CABLE SO THE PCM (COMPUTER) RESETS TO ORIGINAL DEFAULT VALUES. HOPE THIS WORKS FOR YOU. GOOD LUCK

Apr 29, 2009 | 1998 Mazda Millenia

Not finding what you are looking for?
Hyundai Motor 2004 Sonata Logo

Related Topics:

1,278 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

60792 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Hyundai Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...