Question about 2007 Hyundai Azera Limited Sedan

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Changed the o2 sensor and the check engine light came back on with the same code

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Replace with oem parts, especially O2 sensors.. what was the code? Maybe it's your catalytic converter.

Posted on Aug 05, 2010

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1 Answer

Code P0133 Check Engine Light on.


Could be exhaust leak and MAF sensor.

Apr 11, 2013 | Cars & Trucks

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I have a 97 Acura RL,engine light stays on even after O2 sensor is disconnected.I've changed out plugs& checked omhs on coils.Did a compression check on cylinders, 50-80.Do have oil on plugs,


To review, the check engine light will stay on until the problem is fixed and the code or codes are erased. And if the O2 sensor is disconnected the light will stay on for sure.
Do you have the trouble codes stored in the computer ?
FYI - the cylinders should have over 100psi of compression.

Sep 16, 2012 | Cars & Trucks

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A few days ago the check engine light turn on in my 2004 Chrysler Sebring and I got the code P0137. The light went off the next day but I still took the car into the dealer and they changed out the O2...


COULD HAVE SHORT IN WIRING CIRCUIT OR PCM PROBLEMS.IT WOULD NOT BE SAFE TO DRIVE CAR WITH O2 SENSOR FAULT. BECAUSE FUEL MIXTURE WOULD BE TOO RICH CAUSING CATALYTIC CONVERTER DAMAGE CAUSING IT TO OVERHEAT GET RED HOT UNDER CAR CAUSE FIRE AND YOU WOULD HAVE A LOT OF FUEL CONSUMPTION .I WOULD NOT DRIVE CAR.BETTER TO USE A RENTAL CAR FOR LONG TRIP GET CAR CHECK OUT AGAIN AT THE DEALERSHIP.

Jun 24, 2011 | 2004 Chrysler Sebring

1 Answer

How do I reconnect the check engine light. Is it just a bulb?


If your check engine light comes on then it will definitely not pass.There is no such thing as a code that says your sensors are bad. I could help you out more if i had the codes.If your sensors were bad you would get a heater failure code.But then again it could be anything.You need that code.

Feb 19, 2010 | 1998 Honda Civic

1 Answer

Check engine light for o2 sensors?


How long did the car run before the light cam back on? I don't know what type of OBD tester you have, Does it show the values of the O2 sensors.

Jul 23, 2009 | 2001 Subaru Legacy

1 Answer

SERVICE ENGINE LIGHT


its probably the caytalac converter some times puts the o2 sensor code ere or there is more then one o2 sensor. thanks!!!

Mar 26, 2009 | 2000 Lexus RX 300

1 Answer

Code # P0141 and P0138


You said you changed the O2 sensors, which ones? I do believe that sensor 2 is the Catalyst efficiency monitor, it looks like an O2 but it's function is different. This sensor is behind the Catalytic converter, the O2 is in front. Bank one is the bank that # 1 cylinder is on, so the sensor that is defective is the 2nd sensor back on that sides exhaust pipe.

P0141 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 2

P0138 - Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 2

Oct 26, 2008 | 1998 Jeep Grand Cherokee

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