Question about 2001 Hyundai Elantra

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2001 Elantra Engine light came on -o2 sensor,replaced now the lght is on again they say it was the gas cap-How long does it take for the code to set if capis loose?

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TRASH IT !!!

Posted on Aug 21, 2008

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Same Q's for 2001 Mitsubishi Eclipse GT..


Start buy replaceing the o2 sensor after the cat first o2 sensor if bad will give wrong reading i normaly tell the person lets try replaceing 2 o2 before spending 900 on a cat

Sep 28, 2015 | Mitsubishi Cars & Trucks

1 Answer

Engine light on with P2096 code


Did you replace the O2 sensor after the catalytic converter? This code is set by the rear O2 sensor. It usually indicates early failure or restricted catalytic converter. May want to have an exhaust back pressure test performed.

Jul 07, 2014 | 2005 Jeep Wrangler

1 Answer

I have a 2001 hyundai elantra with a p0440 code.I replaced the PCV valve & hose,cleaned/tightened gas cap,tested manifold vacuum[is good],replaced rear charcoal cannister & pressure sensor...


Sounds like you have done a lot of the right work here. I popped that code on my 2001 Elantra within the first 50k miles. Turns out that in my case the gas cap was the culprit. Keep reading though, maybe this still applies. My cap was still very new, and it's not that I forgot to put it on or to tighten it. The mechanic at the Hyundai dealership said this happened all the time to this car, and that you simply have to get the cap tighter. It has that ratcheting release so as to not over-tighten it, but here's the trick: Tighten as normal, allow a few clicks for good measure. Then, press in firmly against the cap and you'll see that you can get another 1/8 or so turn out of the cap. I popped this code 3 times total, the first time the dealer just reset the light. The second time was when he told me about this, and the last time was accidental on my wife's part. :) You can reset the light by simply removing the battery terminal... 30 minutes seemed to work for me... and then reattach. Of course it goes without saying that this is with the car off. Good luck!

Aug 07, 2011 | 2001 Hyundai Elantra

2 Answers

How do I reset the service engine soon light?


two ways you can do it. First it would be best to find someone with a code reader to find out what the code is ,some times aout parts stores will check the code for you and maybe even clear it for you.otherwise unhook one of your battery cables for a little while and the check engine light will go off untill what ever set it off sets it off again note unhooking the battery will clear your radio stations

Nov 02, 2009 | 2001 Mitsubishi Galant

2 Answers

Hyundai 2001 engine light stays on


I have a 2001 Elantra, and the Check Engine light keeps coming on. Replaced the o2 sensor, 3 times, and flex pipe was replaced. The engine light came back on...original fault code was P0133............any ideas??

Sep 23, 2009 | 2001 Hyundai Elantra

1 Answer

Check Engine Light-Replaced O2 Oxegen Sensor 2001 Hyandai Accent


This may sound stupid but have you checked your fuel cap? I have had a fuel cap cause that misfire code before. Either way its a cheap test. Good luck

Aug 07, 2009 | 2001 Hyundai Elantra

2 Answers

Chk engine light on. failed inspection for code 0455.


Oil level
coolant level
Also it could be a O2 sensor gone bad very common

Apr 10, 2009 | 1998 Volvo S70

7 Answers

Check Engine Light Comes on Intermittently


The P0141 code points to the O2 sensor heater circuit. It could be that there is a short in the wiring to the O2 sensor or it could be that the O2 sensor heating element itself is bad. The code is for O2 sensor Bank 1 Sensor 2. Bank 1 means its the O2 sensor connected to the exhaust pipe that runs to cylinder #1. Sensor 2 means that it is likely the O2 sensor after the catalytic converter on the same exhaust pipe.

Dec 31, 2008 | 2004 Honda Accord

2 Answers

Service engine soon light grand vitara xl-7 on


You know I would doubt that this is caused by a speed wristed attendant, especially if you have removed and replaced the gas cap at the correct speed and the light stays on. ..................... ha ha.

Seems to be a recurring problem and having just spent a poop load of money with 2 dealers on that SES light issue I will tell you that the 2001 2.7 V6 engines have 4 O2 sensors and 3 catalytic converters. According to both dealers as those aforementioned parts approach the 100,000 mile marker they tend to send error codes. You get the errors cleared and 50 miles later there is the SES light again. The O2 sensors seemd to be very difficult to remove, both shops indicated you are better off to buy new catalytic converters, install new O2 sensors in them and then bolt in the whole mess as a unit. This of course assumes your bad readings are O2 sensor related. I would take it to a dealer as oppsed to autozone or advance as their generic little readers pale in comparison to the code readers at the dealership. price reflects that though.

Dec 19, 2008 | 2001 Suzuki Grand Vitara

4 Answers

Service Engine soon light Code P0133


I just came from an Autozone, and then spoke with 2 Hyundai dealership service departments and they all three stated the P0113 code is the Intake Air Temperature sensor (IAT, also referred to as the Mass Air Pressure - MAP - sensor) on the engine, not an O2 sensor found in the exhaust system.

Dec 11, 2008 | 2001 Hyundai Elantra

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