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Originally Posted by Thunderbird281
My check engine light came on the other day. The code trasnlated into "system running too rich". My guess is bad oxygen sensors because the car (96 4.6L) still has the original sensors, and it has 114,000 miles on it. I also just found out the other day that my car has 4 O2 sensors, so that's going to cost me a good amount of money. I just wanted to know if there is a certain brand of oxygen sensors that are better than the rest. I'm thinking about getting Denso O2 sensors. Are they any good or should I go for Bosch or something else?
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If you use the factory Ford O2's and have a Ford authorized technician do the work, you are looking at big $$$. But if you are not concerned about that go to Advanced Auto or any other parts dealer and pick up the 4 you need (I believe they should be pre and post cat on each header) Bosch makes a good one. They should not cost more that $15-$25 each unless your app. is an odd style.
I had my local repair shop do mine because mine were rusted closed. I had only 2 and it cost me $30 for the O2's and $100 to install. Be careful because some Ford shops complain if the parts are not "ford Certified".
Be sure to pick up the special tool needed to remove them. Should look like a deep well socket with a cut-out for the wire. You will also have to splice the old wire into the new one if yours is like mine in my 85. The parts tech should be able to help you with that. Just be careful to wrap the wire good with a heat shrink sealer because you will cause major problems if you don't.
Hope this helps.
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12-22-2005, 12:52 AM
