Incorrect o2 sensor issue

[emma010208]

Hi looking for advice 

my car went into garage in march with engine light fault, diagnostic text showed o2 sensor issue this was changed twice and fault still remained, after further tests they changed the cpu. This seemed to fix the issue.

about a month ago the car lost power on a journey and engine light again came on. On diagnostic test the same fault with sensor showed again, after changing this twice the fault still remained …the garage now does not know the issue and not know what to do next….

anyone came across this issue? 

[unofix]

2 minutes ago, emma010208 said:

anyone came across this issue? 

Yes, there is someone over in the Escort forum with the exact same problem 🤣

As @TomsFocus has said you need the proper Ford Diagnostic Trouble Codes (DTC's) otherwise it's a pure guessing game as your garage has already proved.

You can get real diagnostic software for you car (Free) from FORScan. You will need a vLinker FS cable and then you will be able to get all of the codes.

FORScan: https://forscan.org/download.html

vLinker FS cable: https://www.amazon.co.uk/Vgate-vLinker-Adapter-FORScan-MS-CAN/dp/B0952P4MLP