O2 Sensor
07-28-2005, 09:36 AM
#1
Guest
Posts: n/a
O2 Sensor
I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
couple of months ago and I did the 3 turns of the ignition switch and the
codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
which I did. Now the check engine light comes on and then goes out, it's
the same codes. What could be the problem..........
couple of months ago and I did the 3 turns of the ignition switch and the
codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
which I did. Now the check engine light comes on and then goes out, it's
the same codes. What could be the problem..........
07-28-2005, 09:46 AM
#2
Guest
Posts: n/a
Re: O2 Sensor
You have 2 O2 sensors?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Ed Wojciechowski wrote:
>
> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
> couple of months ago and I did the 3 turns of the ignition switch and the
> codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
> which I did. Now the check engine light comes on and then goes out, it's
> the same codes. What could be the problem..........
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Ed Wojciechowski wrote:
>
> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
> couple of months ago and I did the 3 turns of the ignition switch and the
> codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
> which I did. Now the check engine light comes on and then goes out, it's
> the same codes. What could be the problem..........
07-28-2005, 09:46 AM
#3
Guest
Posts: n/a
Re: O2 Sensor
You have 2 O2 sensors?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Ed Wojciechowski wrote:
>
> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
> couple of months ago and I did the 3 turns of the ignition switch and the
> codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
> which I did. Now the check engine light comes on and then goes out, it's
> the same codes. What could be the problem..........
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Ed Wojciechowski wrote:
>
> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
> couple of months ago and I did the 3 turns of the ignition switch and the
> codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
> which I did. Now the check engine light comes on and then goes out, it's
> the same codes. What could be the problem..........
07-28-2005, 09:46 AM
#4
Guest
Posts: n/a
Re: O2 Sensor
You have 2 O2 sensors?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Ed Wojciechowski wrote:
>
> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
> couple of months ago and I did the 3 turns of the ignition switch and the
> codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
> which I did. Now the check engine light comes on and then goes out, it's
> the same codes. What could be the problem..........
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Ed Wojciechowski wrote:
>
> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
> couple of months ago and I did the 3 turns of the ignition switch and the
> codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
> which I did. Now the check engine light comes on and then goes out, it's
> the same codes. What could be the problem..........
07-28-2005, 09:46 AM
#5
Guest
Posts: n/a
Re: O2 Sensor
You have 2 O2 sensors?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Ed Wojciechowski wrote:
>
> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
> couple of months ago and I did the 3 turns of the ignition switch and the
> codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
> which I did. Now the check engine light comes on and then goes out, it's
> the same codes. What could be the problem..........
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Ed Wojciechowski wrote:
>
> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
> couple of months ago and I did the 3 turns of the ignition switch and the
> codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
> which I did. Now the check engine light comes on and then goes out, it's
> the same codes. What could be the problem..........
07-28-2005, 01:42 PM
#6
Guest
Posts: n/a
Re: O2 Sensor
Your '96 is OBD II compliant, this means you can extract the codes quickly
and easily with commercially available diagnostic equipment. Many auto parts
stores will let you use the equipment free of charge on the assumption that
the O2 Sensor(s) is(have) failed and you will come back in and buy them from
the clerk on duty. The diagnostic tool will also reset the circuit and turn
the Check light off.
"Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>couple of months ago and I did the 3 turns of the ignition switch and the
>codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
>which I did. Now the check engine light comes on and then goes out, it's
>the same codes. What could be the problem..........
and easily with commercially available diagnostic equipment. Many auto parts
stores will let you use the equipment free of charge on the assumption that
the O2 Sensor(s) is(have) failed and you will come back in and buy them from
the clerk on duty. The diagnostic tool will also reset the circuit and turn
the Check light off.
"Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>couple of months ago and I did the 3 turns of the ignition switch and the
>codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
>which I did. Now the check engine light comes on and then goes out, it's
>the same codes. What could be the problem..........
07-28-2005, 01:42 PM
#7
Guest
Posts: n/a
Re: O2 Sensor
Your '96 is OBD II compliant, this means you can extract the codes quickly
and easily with commercially available diagnostic equipment. Many auto parts
stores will let you use the equipment free of charge on the assumption that
the O2 Sensor(s) is(have) failed and you will come back in and buy them from
the clerk on duty. The diagnostic tool will also reset the circuit and turn
the Check light off.
"Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>couple of months ago and I did the 3 turns of the ignition switch and the
>codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
>which I did. Now the check engine light comes on and then goes out, it's
>the same codes. What could be the problem..........
and easily with commercially available diagnostic equipment. Many auto parts
stores will let you use the equipment free of charge on the assumption that
the O2 Sensor(s) is(have) failed and you will come back in and buy them from
the clerk on duty. The diagnostic tool will also reset the circuit and turn
the Check light off.
"Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>couple of months ago and I did the 3 turns of the ignition switch and the
>codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
>which I did. Now the check engine light comes on and then goes out, it's
>the same codes. What could be the problem..........
07-28-2005, 01:42 PM
#8
Guest
Posts: n/a
Re: O2 Sensor
Your '96 is OBD II compliant, this means you can extract the codes quickly
and easily with commercially available diagnostic equipment. Many auto parts
stores will let you use the equipment free of charge on the assumption that
the O2 Sensor(s) is(have) failed and you will come back in and buy them from
the clerk on duty. The diagnostic tool will also reset the circuit and turn
the Check light off.
"Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>couple of months ago and I did the 3 turns of the ignition switch and the
>codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
>which I did. Now the check engine light comes on and then goes out, it's
>the same codes. What could be the problem..........
and easily with commercially available diagnostic equipment. Many auto parts
stores will let you use the equipment free of charge on the assumption that
the O2 Sensor(s) is(have) failed and you will come back in and buy them from
the clerk on duty. The diagnostic tool will also reset the circuit and turn
the Check light off.
"Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>couple of months ago and I did the 3 turns of the ignition switch and the
>codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
>which I did. Now the check engine light comes on and then goes out, it's
>the same codes. What could be the problem..........
07-28-2005, 01:42 PM
#9
Guest
Posts: n/a
Re: O2 Sensor
Your '96 is OBD II compliant, this means you can extract the codes quickly
and easily with commercially available diagnostic equipment. Many auto parts
stores will let you use the equipment free of charge on the assumption that
the O2 Sensor(s) is(have) failed and you will come back in and buy them from
the clerk on duty. The diagnostic tool will also reset the circuit and turn
the Check light off.
"Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>couple of months ago and I did the 3 turns of the ignition switch and the
>codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
>which I did. Now the check engine light comes on and then goes out, it's
>the same codes. What could be the problem..........
and easily with commercially available diagnostic equipment. Many auto parts
stores will let you use the equipment free of charge on the assumption that
the O2 Sensor(s) is(have) failed and you will come back in and buy them from
the clerk on duty. The diagnostic tool will also reset the circuit and turn
the Check light off.
"Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>couple of months ago and I did the 3 turns of the ignition switch and the
>codes came up as 12,21,55. So, I figure it's time to replace the O2 sensor,
>which I did. Now the check engine light comes on and then goes out, it's
>the same codes. What could be the problem..........
07-28-2005, 02:54 PM
#10
Guest
Posts: n/a
Re: O2 Sensor
This is the weird part about my Jeep, I can and have done just that, gone
to the parts store and they hooked up the diagnostic tool and it read O2
sensor upstream blah blah blah. I also can do the key trick. I have two
sensors, but if the other one at the cat went bad, wouldn't the code read
downstream?
--On Thursday, July 28, 2005 10:42 AM -0700 J Strickland <spam@nospam.net>
wrote:
> Your '96 is OBD II compliant, this means you can extract the codes
> quickly and easily with commercially available diagnostic equipment.
> Many auto parts stores will let you use the equipment free of charge on
> the assumption that the O2 Sensor(s) is(have) failed and you will come
> back in and buy them from the clerk on duty. The diagnostic tool will
> also reset the circuit and turn the Check light off.
>
>
>
>
>
> "Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
> news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>> couple of months ago and I did the 3 turns of the ignition switch and
>> the codes came up as 12,21,55. So, I figure it's time to replace the O2
>> sensor, which I did. Now the check engine light comes on and then goes
>> out, it's the same codes. What could be the problem..........
>
>
to the parts store and they hooked up the diagnostic tool and it read O2
sensor upstream blah blah blah. I also can do the key trick. I have two
sensors, but if the other one at the cat went bad, wouldn't the code read
downstream?
--On Thursday, July 28, 2005 10:42 AM -0700 J Strickland <spam@nospam.net>
wrote:
> Your '96 is OBD II compliant, this means you can extract the codes
> quickly and easily with commercially available diagnostic equipment.
> Many auto parts stores will let you use the equipment free of charge on
> the assumption that the O2 Sensor(s) is(have) failed and you will come
> back in and buy them from the clerk on duty. The diagnostic tool will
> also reset the circuit and turn the Check light off.
>
>
>
>
>
> "Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message
> news:1AD238B6DCDA4CE362DE47F3@boldme02.andrew.ad.c mu.edu...
>> I have a '96 GC Laredo with 158k, 4.0L. The check engine light came on a
>> couple of months ago and I did the 3 turns of the ignition switch and
>> the codes came up as 12,21,55. So, I figure it's time to replace the O2
>> sensor, which I did. Now the check engine light comes on and then goes
>> out, it's the same codes. What could be the problem..........
>
>