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My engine light only comes on sometimes. I took to get inspected today and it read code P0133. What is this and how am I going to pay to get this fixed?

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PO133 indicates that your front oxygen sensor is not controlling the engine properly .. thats usually a bad oxygen sensor .... in some cars thats easy to change. you could do it if you have any mechanical abilities .. in other cars its nearly impossible, it takes special tools and patients beyond human .. hopefully yours is one of the easy ones .. the part itself might be less than a hundred bucks at an auto parts store but more than that at a dealership . other things that can cause this ... if the wires going to the oxygen sensor are damaged .. and if there is a significant exhaust leak (you should hear that) .. usually changing the oxygen sensor will fix the problem ..it has wires going to it and it screws into the exhaust system somewhere between the engine and the catalytic converter. if you give your auto parts store the make, model, year and engine size of your car then they can probably show you where to find the sensor .. if you are not mechanically inclined then find a mechanic with a good reputation forget lowest price .. i find that often the auto parts store can recommend someone if you ask ..

Posted on Jul 03, 2010

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Check engine light on after replacing original oxigens sensors P0153,p0133. Could it be the computer?


I doubt it. Code 133 is for the O2 sensor that covers cylinders one and four, and code 153 covers cylinders two and three. The codes mean the sensors are slow to change. The sensors are supposed to change from lean to rich and back several times per minute.
When the O2 sensors read rich, the computer slows down the injectors, then when they read lean, the computer opens the injectors faster.
The problem could be a lack of fuel, too much fuel, or the engine is not reaching normal operating temp among other things.
You would need to use a scanner to watch the data stream to find out whats happening with the sensors and injectors. The computer would be the last choice for a cause.

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1 Answer

Jeep cherokee p0133 p0171


http://www.obd-codes.com/p0133
http://www.obd-codes.com/p0171

Check to make sure your intake system does not have any leaks in it that is allowing extra air to come in past the MAF sensor.

http://www.ehow.com/how_6879913_do-_99-jeep-cherokee-4_0_.html

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1 Answer

My engine light is on so i took an OBD reading and it showed the error codes P0401, P0420 and P0133. What do I need to fix?


P0401 is EGR valve, low circulation detected.
P0420 Catalyst system.
P0133 is O2 sensor bank 1 sensor 1.
All these codes are emissions related, so i would start with the EGR valve, it's probably clogged with carbon. The catalytic converter could be also, check that for excessive backpressure. The oxygen sensor can be tested, replace if needed. Good luck, i hope this helps.

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2 Answers

Engine light on 2007 jeep liberty


This light could be on for many reasons, this light comes on when the computer sees the engine is not running right or sensor reading is out of specs, you will need to have the computer scanned for codes, these codes will tell you in which system the problem is in, sometimes it can tell you very close to what the problem is, a loose gas cap can make this light light up or a faulty sensor or bad sparkplug and on and on, so start with the scan, autozone the auto parts store and others will scan the computer and give you a print out of the codes, for example a po301 code, if you get the codes i can help you find the problem, hope this helps.

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1 Answer

I took my car with a code failure p0133 they said I didnt need a new sensor but thay can fix it now after 3 months the engine light is back on and they said I must pay again. Someone said if I knew where...


some times the sensor is doing what bit is supposed To telling you that there is some thing wrong , reading out put, it isn't always the sensor , i have hear you can git your car scanned at Auto zone for free . that is true here .you can also buy a scanner that reads codes Farley cheap at most parts stores , and they come with instructions that tell you how to test 1&2& 3 wires sensors hope this is help full ,PS i have had no or Vere little success with cleaning them ,if i can help please let me know Thank you.

Mar 29, 2010 | 1996 Ford Contour

2 Answers

Have p0130 and p0133 codes 98 toyota tacoma


check the mass air flow sensor there maybe dirt on the filiment inside the sensor causing false readings. cleaning or replacing it may make the codes go away.

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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

1 Answer

In a Saturn SL2 1998, I have the check engine soon light on. The codes readings show P0133 and P0422.


P0133 is an oxygen sensor "response too slow" code (meaning it's not getting up to temperature quickly enough, and the computer is assuming damage to its heating element). P0422 is a catalytic converter problem indication (cat is below peak efficiency). It's assuming you have a failure with the primary O2 sensor and that the cat is also bad. Change your O2 sensor first, have the codes cleared, and see if the cat code comes back or if the O2 sensor change fixes both issues.

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