Malfunction INducator Light
- Thread starter Webster
- Start date
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AtlanticLiberty
Full Access Member
Check this out...
http://www.jeepkj.com/forums/viewtopic.php?t=325
I had that code to. Mine was just a freak thing. With only 35K on it, I knew I really didn't need a O2 sensor, so I took off the battery cable and cleared the code. It never came back. All is well. I suggest you do the same and see if the code returns.
http://www.jeepkj.com/forums/viewtopic.php?t=325
I had that code to. Mine was just a freak thing. With only 35K on it, I knew I really didn't need a O2 sensor, so I took off the battery cable and cleared the code. It never came back. All is well. I suggest you do the same and see if the code returns.
AtlanticLiberty
Full Access Member
Honestly I'm not quite sure when, but I still say clear the code by taking off the negative battery cable for a few minutes just to see if it's a fluke like mine was. If it's really a problem, the code will come back.
JeepJeepster
Full Access Member
The only thing about the 02 sensors, it has 4?!? How do u know which one to replace? those things cost alot too.
Code p0153 Oxygen sensor
Hi, the engine lignt came on again. The code is p0153. The last time I took the battery cable off and the light went out. It had 47000 at that time now it has 48800. Someone I was talking to said that disconnecting the battery to resent the computer is not such a good idea. It might screw up other things. WHat do you think?
](*,) (Aeh) :-s
Hi, the engine lignt came on again. The code is p0153. The last time I took the battery cable off and the light went out. It had 47000 at that time now it has 48800. Someone I was talking to said that disconnecting the battery to resent the computer is not such a good idea. It might screw up other things. WHat do you think?
](*,) (Aeh) :-s
2003KJ
Member
If the code came back, you've got a problem. I've seen them do as AtlanticLiberty described, which is come up once and never come up again. The computers on modern cars are really picky about the o2 sensors....meaning they have to act properly basicaly 100% of the time, otherwise the computer freaks out and pretty much throws a code immediately.
But in your case, the code came back. The two possibilities are you had a freak incident happen twice (highly unlikely), or like I said above, you've got a problem. I would not recommend resetting the computer again by un-plugging the battery. According to the list above and another list I use, its on your #1 oxygen sensor. About the simplest way to attempt to solve the problem would be to just go ahead and replace the sensor. Around here they can be had at Napa or Autozone or your other favorite auto parts chain for about $50.
Seeing that the code is saying "O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)", its possible that it still is functioning. And since the modern engine goes by what the computer tells it to do, in the sense of how rich or lean to run (rich when the engine is cold, and leaner when the engine had reached a pre-determined temperature), and your computer goes by what readings it's getting back from your o2 sensors, you might either be running too rich too long, or to lean to early. How is your MPG looking lately?
Again, try starting off with replacing the sensor. Then take the Jeep to a mechanic who has a OBD-II scanner (if you dont have one your self) and have the light turned off properly. This should give you a clear idea of whether or not you fixed the problem or not.
But in your case, the code came back. The two possibilities are you had a freak incident happen twice (highly unlikely), or like I said above, you've got a problem. I would not recommend resetting the computer again by un-plugging the battery. According to the list above and another list I use, its on your #1 oxygen sensor. About the simplest way to attempt to solve the problem would be to just go ahead and replace the sensor. Around here they can be had at Napa or Autozone or your other favorite auto parts chain for about $50.
Seeing that the code is saying "O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)", its possible that it still is functioning. And since the modern engine goes by what the computer tells it to do, in the sense of how rich or lean to run (rich when the engine is cold, and leaner when the engine had reached a pre-determined temperature), and your computer goes by what readings it's getting back from your o2 sensors, you might either be running too rich too long, or to lean to early. How is your MPG looking lately?
Again, try starting off with replacing the sensor. Then take the Jeep to a mechanic who has a OBD-II scanner (if you dont have one your self) and have the light turned off properly. This should give you a clear idea of whether or not you fixed the problem or not.
um did u contact a dealer's service department and ask them? im just saying if u went to a neighborhood mechanic he nay have lied to u just to get your business. call the dealer and they can use ur VIN to determine if it is still under warranty or not. im thinking it should be since the o2 sensors might be part of the emissions system and usually emissions components are covered for like 8 years or something to that extent.
2003KJ
Member
Agreed. I would definately go to a dealership that you trust and have them pull up your warranty (if there is one). I have a hard time believing that BOTH o2 sensors are shot at such an early age, although possible, it's extremely rare.
