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2007 mustang gt o2 sensor problems tune?

8792 Views 10 Replies 3 Participants Last post by  murman50
Hi guys,
I puchased a 2007 gt a month ago. It has 67,000miles looks great but has a couple of problems. The car has a C&L Intake and upgraded i believe long tube headers.
My problem is that 1 o2 sensor is malfunctioning. Its stuck on lean. I was told by 'FORD' Its my intake. I dont believe that or it would trigger both front o2 sensors correct? The car also came back running like absolute sh*t so im guessing there was a tune on it and now there isnt because it runs pretty bad after they had it. It runs worse when the cars cold.
Im really just needing advice, isit tune related? isit the o2 sensor? shall i go back to ford and pull out an ar? only joking :nono:
any help would be much appreciated.
Romano - Las Vegas
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I will try, theres 4 in my car, 3 of which are green :s.
I know the rear are blue but I had a mixture all over the place. Im going to get my mechanic to look over the harness, make sure the o2s are correctly placed as the previous o2 sensors were grinded on the connector to fit the location. :worshiphope this works, dying for a smog lol.
Thanks again Muckerpuck!
hey did you ever get the o2 sensor thing fixed. I have the same issue , it is the long tube headers it messes with the sensors. I so far have not got Bama tunes to get rid of it . The last tune they gave me killed my gas mileage ....wow. If you found a solution could you tell me about it. I have been trying to fix my engine light dilemma for 1 year now
hey did you ever get the o2 sensor thing fixed. I have the same issue , it is the long tube headers it messes with the sensors. I so far have not got Bama tunes to get rid of it . The last tune they gave me killed my gas mileage ....wow. If you found a solution could you tell me about it. I have been trying to fix my engine light dilemma for 1 year now
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