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Old 11-28-2011, 01:05 PM   #1
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o2 sensor help new headers problem

So I installed new headers on my 2001 v6 auto mustang, when I installed the headers I had to remove the cats so I'm running completley straight pip and I had 2 holes for the sensors to be plugged back in. So I screwed in the rear sensors into the back of of the headers. The front sensors are just hanging down atm there about 6in from the head and there just hanging there... what should I do because my car chugss and when I floor it it stops me from accelerating. And also the check engine light flashes. I've heard to get eliminaters or something???? Help
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Old 11-28-2011, 02:05 PM   #2
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The V8's use an eliminator, not sure about the 6. If the CEL is flashing that's not good. I would not drive it until you get the right info.
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Old 11-29-2011, 09:59 AM   #3
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Re: o2 sensor help new headers problem

I believe that you now have to get it tuned. Call your Mustang shop, or call VMP, or call americanmuscle.com in regards to their BAMA specialist. You will get the correct answer!
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Old 11-29-2011, 10:47 AM   #4
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That's what I have done and they said my car with what I thought it was is that its on limp mode and the tuner will correct the problem easily
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Old 11-29-2011, 11:22 AM   #5
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Re: o2 sensor help new headers problem

put the front o2 sensors in the headers , disconect the rear o2's and plug Mil sensors in ........... YOU NEED THE FRONT O2's
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Old 11-29-2011, 02:48 PM   #6
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Okay so beens they done work I should extend them and put them inside the header because they wount reach at this time

---------- Post added at 02:48 PM ---------- Previous post was at 02:48 PM ----------

Because the inserts are on the way end of the header
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Old 11-30-2011, 06:14 AM   #7
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Re: o2 sensor help new headers problem

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put the front o2 sensors in the headers , disconect the rear o2's and plug Mil sensors in ........... YOU NEED THE FRONT O2's
Yep, Do whats explained above, just get a set of O2 sensor extenders with the same plug ends that match the primary (front) sensors. Sorry, I didn't pick up on that & STAMPDE got it.
She should run much better till it's tuned. Much better.
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Old 11-30-2011, 05:14 PM   #8
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So I got the tuner from american muscule will that work instead of getting the extendors? Will the tuner fix the issue or do I still have to have the front ones plugged in?
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Old 12-01-2011, 07:36 AM   #9
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Re: o2 sensor help new headers problem

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So I got the tuner from american muscule will that work instead of getting the extenders? Will the tuner fix the issue or do I still have to have the front ones plugged in?
Still have to place the O2 sensors in the appropriate spots, and the persons (BAMA) who designed your SCT should have been given all the specific information pertaining to your car that is no longer stock set up anymore (Like your headers, cats, ect....)
You can hook up the O2 sensors in the primaries and a set of MILS for the rear sensor wires, call American Muscle and verify that BAMA created your tune file taking those things into consideration. You do get free tunes for life! Anytime you make a change or add a mod, call them up and they will re-write your tunes for you. You'll be very impressed with the XCal once it is tuned up and running properly!
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Old 12-01-2011, 02:21 PM   #10
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Re: o2 sensor help new headers problem

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So I got the tuner from american muscule will that work instead of getting the extendors? Will the tuner fix the issue or do I still have to have the front ones plugged in?
Its alot cheaper to buy extensions for the front o2's and to buy rear o2 simulators. You can't run without front o2's (the way your car is).
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Old 01-22-2014, 06:12 PM   #11
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I wouldn't drive it because you are running lean and hot ....not enough fuel ecu will not correct your fuel amount and it will require a tune bama sct3 is about 379 bucks tunes for life and a muffler shop can weld in some bugs to put your sensors back for about 100 bucks I think the extention wires are 29 bucks at American muscle
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Old 01-22-2014, 10:44 PM   #12
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The v-6s and v-8s are different in this area.

All 4 of my O2 sensors are bad and my car only runs 5% richer. Your check engine light will still stay on after you fix the O2 sensors and you will have a EGR code because you eliminated the cats. It will say insufficient flow to the EGR. The cats cause a sufficient amount of back pressure for the EGR to send recycled gas back to the intake. But this will still not cause your car to "chug" Trust me I ran with no cats now I got high flow cats because the sound was too loud, late at night. A tuner can turn this code off so your check engine light can not come on for this particular reason.
I recommend you taking it to autozone and getting the codes checked. You could have possibly not plugged a wire or vacuum line back in.
Mill eliminators will not make the car run efficiently. It just turns the cell code to the computer by sending the right frequency. Either get O2 sensor extenders, cut the wires one by one add wire and crimp them back together, or Autozone has several O2 sensors for the Mustang with different length wires. You can also turn the cell off with a tuner or mill eliminators. You can buy or make mill eliminators. Just ask and I will give you a link on how to make them.
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