O2 sensor removal P2270 code
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Laughing Gas
Joined: Feb 2002
Posts: 917
Likes: 25
I am going to have to look harder to find out how many and where they are.
I had been thinking that there were 3 sensors.
Sounds like I may have went through the pain of wrenching one out and replacing for the heck of it.
I had been thinking that there were 3 sensors.
Sounds like I may have went through the pain of wrenching one out and replacing for the heck of it.
Thread Starter
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Laughing Gas
Joined: Feb 2002
Posts: 917
Likes: 25
Crawled underneath at lunch here at work...
Sure enough
Another sensor on the passenger side that I hadn't seen before.
Will have to look that one over and see if I find anything that I can get at or anything obvious besides the sensor itself.
A lot less room and access than driver's side.
As rough as it was getting the first out, don't know about getting this one out in such close quarters.
Sure enough
Another sensor on the passenger side that I hadn't seen before.
Will have to look that one over and see if I find anything that I can get at or anything obvious besides the sensor itself.
A lot less room and access than driver's side.
As rough as it was getting the first out, don't know about getting this one out in such close quarters.
Fleet Owner
Joined: Apr 2008
Posts: 24,319
Likes: 5,130
From: 0,0,1
For the other one that still has to come out, you never know, maybe it's not in as tight.
Thread Starter
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Laughing Gas
Joined: Feb 2002
Posts: 917
Likes: 25
Well...
The passenger side was an even tighter area to get at.
Another real pain to get this sensor out too.
Not quite as bad as first but took a LOT of heat and a few threads still wanted to stay put.
But the real kick in the head is
(I bet you can guess already)
Still got the P2270 code when I scanned as I drove into work this morning
Guess I better try to find out more about what actually causes this code.
Seems like everything I have been finding and reading so far has shown once the sensors get replaced no more code.
Guess there must be more to my trouble.
I tried looking over the exhaust as best I could thinking there may have been a leak or something, did not see anything obvious.
Did not see, hear, or feel any thing that seemed like a leak.
Appreciate all the help so far.
Thanks
The passenger side was an even tighter area to get at.
Another real pain to get this sensor out too.
Not quite as bad as first but took a LOT of heat and a few threads still wanted to stay put.
But the real kick in the head is
(I bet you can guess already)
Still got the P2270 code when I scanned as I drove into work this morning
Guess I better try to find out more about what actually causes this code.
Seems like everything I have been finding and reading so far has shown once the sensors get replaced no more code.
Guess there must be more to my trouble.
I tried looking over the exhaust as best I could thinking there may have been a leak or something, did not see anything obvious.
Did not see, hear, or feel any thing that seemed like a leak.
Appreciate all the help so far.
Thanks
Thread Starter
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Laughing Gas
Joined: Feb 2002
Posts: 917
Likes: 25
I just checked for codes using my ELM 327 plug in and the Torque ap on my phone.
I did not disconnect battery or anything like that.
Initially there were no codes.
I moved the Expedition around the driveway a couples times then drove into work this morning (60 miles).
About 1/2 way here I scanned and saw the P2270 as a pending code.
I did not disconnect battery or anything like that.
Initially there were no codes.
I moved the Expedition around the driveway a couples times then drove into work this morning (60 miles).
About 1/2 way here I scanned and saw the P2270 as a pending code.
Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
It is highly recommended that you completely reset the PCM and start over. Failure to do so can lead to unpredictable results. Performing this step is specifically required in the service manual after replacement of the sensors.
Disconnecting the battery negative cable for 5 minutes is a sure-fire way of doing it.
Whether or not it makes a difference in your case is unknown, but failing to do so is an invalid step.
Disconnecting the battery negative cable for 5 minutes is a sure-fire way of doing it.
Whether or not it makes a difference in your case is unknown, but failing to do so is an invalid step.
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Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
Yes, but you will probably have to re-program your radio.
You may also notice some changes in drive-ability as the PCM goes through its re-learn process. This is normal and will subside in a few trips if everything is working correctly.
You may also notice some changes in drive-ability as the PCM goes through its re-learn process. This is normal and will subside in a few trips if everything is working correctly.
Fleet Owner
Joined: Apr 2008
Posts: 24,319
Likes: 5,130
From: 0,0,1
If resetting the ECM doesn't solve it then you could be looking at an issue with the wiring.
Thread Starter
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Laughing Gas
Joined: Feb 2002
Posts: 917
Likes: 25
I can handle resetting the radio...hopefully
I tried checking all the wiring and connections before wrenching out the sensor.
I should have just sold this thing sooner...
Appreciate the help.
Fingers are crossed again
I tried checking all the wiring and connections before wrenching out the sensor.
I should have just sold this thing sooner...
Appreciate the help.
Fingers are crossed again
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