MY CHECK ENGINE LIGHT CAME ON SO I RAN THE ...

  • Tiny
  • Anonymous
  • 1998 Ford Expedition
  • 212 miles

My check engine light came on, so I ran the diagnostic at an auto parts store and it said bank 1 sensor 1 had to be replaced. I know that means that it's the upstream oxygen sensor but I don't know where it goes, can you send me instructions and a diagram please.

Tuesday, November 13th, 2012 AT 4:40 AM

1 Answer

  • Tiny
  • caradiodoc
  • Expert
  • 24,907 posts

Diagnostic fault codes never say to replace parts. They only indicate the circuit or system that needs further diagnosis. In the case of the oxygen sensors, there's about a dozen different codes related to them and most have to do with problems in the wiring or that the sensor is reporting a bad condition. You don't automatically replace the sensor when it has detected something wrong. Do you know the exact code number or the exact description?

Was this
answer
helpful?
Yes
No
Tuesday, November 13th, 2012 AT 5:12 AM

Please login or register to post a reply.

Similar Questions