O2 Sensors on the Collector's Edition!

[UltimateSVT]

Since the moment we bought the CE I noticed it's under powered when you floor it. Took the car to the shop, plugged it to the computer... all 4 O2 sensors are bad. Is it possible for all 4 to be bad?

 

[blacklsc1]

i dont think all 4 are bad. i would suspect the cat(s). if they are clogged that would throw o(2) codes.

 

[kustomizingkid]

If the cats are bad they can cause the secondary codes... but I would replace the front two and then see what happens, poor mixture can equal poor cat performance... don't put in Bosch junk, NTK or Motorcraft ftw.