Question about 2001 Hyundai Elantra

1 Answer

With a po422 code on a 2001 elantra do i replace the cat. conv. closest to the engine or the one closer to the muffler.

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 41 Answers

You have a 2001, catalict converters are guaranteed for 20-30 years. Your code respresents a problem with your Co2 sensor, probably needs to be replaced or cleaned out real good

Posted on Oct 04, 2010

  • pipo1abi Nov 06, 2010

    i cleaned the sensor, the light stayed on for 3 days. when i went to replace the sensor noticed that my valve cover was leaking oil and that the manifold bolts were a bit loose. oil had gotten into my exhaust manifold and damaged the cat. conv. ended up replacing the exhaust manifold/cat. conv. the light went away on the way to work

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Cannot reset (shut off) SES light after repair


You may have to wipe the ecu by a pro. Or the repair wasn't done correctly either or would work

Apr 15, 2014 | 2001 Nissan Altima

1 Answer

Catalytic converter stopped up. Pipes got red hot. Replaced Cat. Conv. car runs good, then started random misfires, pipes got red hot again. What is exhaust part that is downstream of Cat. Conv. could it...


If the exhaust system was plugged the engine wont run, normally. It will start and idle until the back pressure is such that it can't take in more air/fuel mixture and then stall.

After the converter, there may be a resonator, and then the muffler. Is any exhaust flowing out of the tail pipe? You might try hooking up a scanner and see what your oxygen sensor(s) is/are doing.
Also, scan the MAF(mass air flow) sensor assembly.
Sound like the engine can't breathe, and its getting to much fuel.

Aug 15, 2011 | 2003 Oldsmobile Alero

1 Answer

I was told my 96 intrepid has an exhaust system with two (2) mufflers by an auto shop. i was then told that what they said was a second muffler was in fact the catalytic converter. which is true?


Hello

If you were hot gas leaving the engine you would go through the manifold, into a small pipe, then in to the catalytic converter, down a longer pipe and finally in to a muffler. So, the Cat is closer to the engine and the muffler is closer to the bumper. You only have one muffler on that car I guess is the really simple answer.

I hope that helps you

Nov 27, 2010 | 1996 Dodge Intrepid

1 Answer

2001 elantra replaced cat o2 sensor upstream and


In reading what you've already done, I would suggest a Compression Test along with a vacuum gauge hooked up to the intake manifold. It may be that you're burning oil through your exhaust system in the catalytic converter. I've seen this with leaking or inoperative turbo-chargers. Pull all of your spark plugs, marking them as to what cylinder they went in with a Sharpie and if worn, replace them. Check the distributor cap & rotor button for wear or cross-firing. A Haynes Manual for your vehicle is available through most part stores which is truly effective for your DIYer. Bad plug wires can send unburned gases down through both O2 Sensors and the Catalyst. You may also want to check the plug wires and the coil(s). A fast way of checking plug wires is to grab all of them with your hand with the vehicle running and if you get "zapped"...you need spark plug wires. Remember, the codes you pull are just a general starting point as to where to start your diagnostics, not the exact problem itself. The computer doesn't monitor the mechanical aspect of your engine nor the fuel supply. The computer will take this as a given, so don't forget that when testing that it could be a compression problem or fuel problem, but as I first said...an oil leak fouling your exhaust system such as an inoperative EGR valve or oil leak on the exhaust side of the valve train.

I hope this Helps,

"00 Buck"

Jul 18, 2010 | 2001 Hyundai Elantra

2 Answers

Catalyst


either your O2 sensor is bad or possible you got a bad cat. below threshold means it detected a lower voltage than was expected.

May 14, 2010 | 1999 Honda Accord

2 Answers

My son has a 2001 elantra, we had it read on a code machine so many codes came up, they didn't know what to check. The car will start and idle for 2- 3 minutes that it just stops. We changes the oxygen...


did you disconect the battery if not disconect the battery wait 1 or 2 min and re connect the battery if all the codes come up again even the sensors you repaaced (change the computer it,s bad)

Mar 03, 2010 | 2001 Hyundai Elantra

1 Answer

P0037 error Heater sensor low voltage Bank 1 sensor 2


That is usually internal O2 sensor heater fault replace the sensor bank1 is the side of a V6 or V8 that has the #1 cylinder on it if ithis is a 4 cylinder that doesn't matter sensor2 means it is the second sensor in line you have 1 closest to the engine and one closer to the cat conv. if you only have 2 sensors in the system that would be the one after the cat, conv.

Feb 26, 2010 | 2004 Toyota Corolla

1 Answer

1998 kia sportage po422 rear cat has been replaced


its the front cats that go bad on them, some were recalled check the dealer. the front cat is bolted to the exaust man.

Feb 24, 2010 | 2001 Kia Sephia

2 Answers

Need a new catalytic converter but i dont know were the old one is?


look under truck when cool and from engine follow exhaust pipe towards back will see what looks like a small muffler [ usually about 2 to 3 feet away from engine and before the muffler] thats ur cat conv if ur doing it yourself make sure before going near cat that truck hasnt been running and is cool cat can cause extreme burns up to 1/2 hour after truck has been turned off-also some are bolted in others are welded if welded in measure before cutting old out sometimes may have get an adapter length and extra clamps

Dec 22, 2009 | 1996 Honda Passport

1 Answer

Lack of power


If the catalytic converter disintegrated before you replaced it, the muffler may have been clogged by chunks of ceramic falling from the cat and migrating back to the muffler.
Try this: drive the car warm, then stop and with a helper to gradually raise the RPMs while standing, listen at the tailpipe. If you clearly hear the individual firing of the engine then the system is probably clear. If you notice that the sound is more of a hiss, then either the muffler or (if it has one) the resonator are clogged.
On a car with a heavy-gauge stainless exhaust system, two shots from a .357 magnum into the tailpipe opened it up again (forever) and didn't really make much difference in the loudness of the exhaust. I wouldn't recommend doing that with most exhaust systems though.  
    

Jan 06, 2009 | 2000 Hyundai Elantra

Not finding what you are looking for?
2001 Hyundai Elantra Logo

Related Topics:

428 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

76132 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

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

Answer questions

Manuals & User Guides

Loading...