Code 2270 - Mustang Evolution

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Old 07-13-2012, 11:51 AM   #1
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Code 2270

^i believe this is the code I got. I have a 2004 v6 5 spd bone stock. Code said o2 sensor stuck lean. And possibilitys were exhaust leak, misfire or fuel injection system badly out of calibration. I had an exhaust leak on my 00 and it doesn't sound like I have one on this car. And I don't think it's a misfire because the car runs great but does feel like it idles a little rough. Anyone have any ideas on what this could be or anyone have this code before??
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Old 07-13-2012, 10:47 PM   #2
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Re: Code 2270

that code is for bank 1 sensor 2. what exhaust do you have on there? that code is normal to pop up for people when they swap midpipes on GTs (i know i did lol)...i ended up just using MIL eliminators to kill it, but lets delve further in your issue because it may not be the sensors reading causing the light
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Old 07-14-2012, 01:17 AM   #3
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It's a bone stock v6 with the stock single exhaust
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Old 07-14-2012, 11:43 AM   #4
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Re: Code 2270

could actually be a faulty downstream sensor then
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Old 07-14-2012, 01:35 PM   #5
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The code goes away after a while tho. It only seems to happen when I take off as soon as I start it
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Old 07-15-2012, 10:18 PM   #6
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Re: Code 2270

Quote:
Originally Posted by Dgerow12 View Post
The code goes away after a while tho. It only seems to happen when I take off as soon as I start it
swap the two downstream sensors...after a full drive cycle see if the code stays the same or shifts
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