Where is the bank 1 02 sensor located at?

I have a 06 ford focus zx4 2.0L and I got a code the other day and it's for an oxygen sensor bank 1 where is that located at?

What code did the sensor give you? That code will help you diagnose your air/fuel problem… There's no, change the sensor code. Bank 1(4cyl only has one bank) has 2 O2 sensors… Upstream and downstream. Update with the code and any start/run/drivabity issues.

There's only one bank on a 4 cylinder

  • Bank 1 and Bank 2 too lean? I have a 2004 ford taurus. About a month ago the CEL came on, ran to advanced auto to get a code and they said my bank 2 was too lean. Yesterday, got a code run again and they said bank 1 and 2 too lean. They said it was probably my oxygen sensors. The car has developed a rough idle when first starting up and has lost some power and acceleration. I plan to take it to a mechanic soon, but until then i'm trying to find out what the problem is. Any suggestions?
  • Is Ford Escape the best car for a bank robbery? We're planning a bank robbery in London and we need a four-seater car that is fast enough to "escape" pursuing cops… is Ford Escape the best car for escaping cops on chase?