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1996 Ford F-150 Question: Where is the Bank 1 and Sensor 1 located?



1996, Portsmouth, VA, July 27, 2011, 22:24

Is bank 1 left or right, and sensor 1 pre-cat? I have a P0133 code.

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  • Answer #1

    July 28, 2011, 14:45

    It's the bank that has the #1 cylinder, so just follow your #1 wire from your distributor to the number 1 cylinder and there you have it. And, yes it is the pre-cat Oxygen Sensor.

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    1996, July 28, 2011, 15:25


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  • Answer #2

    July 29, 2011, 07:43

    this is a picture showing the bank 1 location.
    for p0133:
    The simplest thing to do is to reset the code and see if it comes back.

    If the code comes back, the problem is more than likely the front Bank 1 oxygen sensor. You will likely wind up replacing it but you should also consider these possible solutions:

    Check and fix any exhaust leaks
    Check for wiring problems (shorted, frayed wires)
    Check the frequency and amplitude of the oxygen sensor (advanced)
    Check for a deteriorating / contaminated oxygen sensor, replace if necessary
    Check for inlet air leaks
    Check the MAF sensor for proper operation

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