Question about 2000 Ford Focus

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Replaced 02 sensor in 2000 ford focus but still get the same codes

California vechicle, would not pass smog came up with an 02 sensor code, ordered new ones on line, got the same codes, order brand new ones from Ford, still got the same codes, when hooking up to the scanner it takes longer then normal, so we are going to try a new ECM, now we are being told that even after we buy the computer we will still have to pay the dealer to "Flash it". Should i replace the ecm and does it really need a $200 flash job?

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  • Paul Bungard
    Paul Bungard May 17, 2019

    There are places that will repair your ECM and program your VIN and Mileage into it for about $200 to $300. I used the place in Georgia. Here is a couple of places that can repair your ABS/TCS module for about $100.00
    http://www.cheapabs.com/vrnissan.html

    Sent my ABS/TCS module to "Cheap ABS" ($109) They repaired it and I installed it.
    Problem is fixed.

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    1707 Enterprise Drive
    Buford, GA 30518
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People often have the preconceived thought that a codes meaning is a fault with the sensor that provided the information. Although this is possible, it is not normally the case. When you get a fault code, the computer is seeing a sensors accepted feed back parameters being exceeded in some manner. This on it's own or in combination with other fault codes creates a trail of clues to the actual source of the problem. An individual sensor will have different faults and security levels associated with its feed back. Guess work becomes very expensive.

Posted on May 17, 2019

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I was getting all types of codes in my 2004 town n Country I disconnected the negative and positive terminals and tied them up together with a plastic strap left it like that for a couple hrs and it reset my whole system n no more codes.. hope this helps.

Posted on May 17, 2019

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Before you go through a bunch of money and time one question? After you replaced the O2 did you have the codes erased/Computer Reset? If not you will continue to get the same code.
Most Auto part stores can plug in and erase it but don't want to erase it unless you buy the part there. . Easier way, just unhook the Positive on your battery for 30 seconds, then hook it back up.
Simple & Free, that will reset your computer. Ofcourse people wanting your money will dispute that but I've done it myself many time. Then if you still have the code you have another problem. Take it to Advanced Discount, AutoZone or a store like that. They will plug in, read the codes and even give you a printout and it is also Free.

Posted on May 17, 2019

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With a trouble code, it needs proper diagnosis to decide what to fix. The possibilities for the cause for an O2 trouble code is broad. A lean or rich air:fuel mixture, vacuum leak, exhaust leak. It is not normal practice to guess which component to replace. A good scan took that reads operating values is useful to find clues for fixing the problem. What you explain leads to replacement of possibly good components.

Posted on Jun 20, 2017

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O2 sensor codes indicate many possible faults. They must be diagnosed to determine the cause. What are the exact codes you are getting?

Posted on Jun 20, 2017

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You need to check the fuel system, the codes for the O2 sensors is just a response to a fuel mixture problem, to rich or to lean.

Posted on Jun 20, 2017

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Why not try a used ECM? and get the key from the same vehicle if it is chipped.If yours and it are chipped,cut a non chipped key for your ignition.and once the used (known good working unit) ecm is installed ,use the nonchipped key in your ignition while holding the ecm key next to your ignition switch to start the vehicle.Once started run it and see if the same codes come up.If all is OK tape the chipped key under the plastic at the ignition lock and use non chipped keys now and pass the smog.

Posted on Jun 20, 2017

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Posted on Jan 02, 2017

Anonymous

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SOURCE: Left and right bank running rich

REPLACING THE PCM WILL BE YOUR BEST BET. HAVING IT FLASHED OR RE-PROGRAMED WILL PROBABLY CAUSE MORE PROBLEMS THAN ITS WORTH. YOU MIGHT CONSIDER GOING BACK TO OEM PARTS,ALOT MORE SIMPLE SOLUTION.

Posted on Mar 13, 2010

RixsFixes

Radio Code Pro

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SOURCE: reset radio code for '02 ford focus

Hi,

You can get this code from the dealer but they will charge you between £20 to £35 for doing this.

I can confidently recommend this site that does these codes for £3.50. They specialise in Ford radios only. Cheap, quick and always reliable. I've used it myself on several occassions without a problem. Click Here.

Hope this helps. Thanks for using FixYa

Posted on Apr 20, 2010

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