Is bank 1 left or right, and sensor 1 pre-cat? I have a P0133 code.
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1996 Ford F-150 Question: Where is the Bank 1 and Sensor 1 located?
Answer #1dandd July 28, 2011, 11:45Master
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.
Reply1996, July 28, 2011, 12:25Rookie
Answer #2chinasinoy July 29, 2011, 04:43Journeyman
this is a picture showing the bank 1 location.
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