I took my car to get a clutch put in my 2005 GT. When I got the car back it tripped a P0135 code (Bank 1 upstream O2 sensor excessive current draw, open circuit, or short circuit).I cleared and it came back. So since I had just had in the shop and they messed with that sensor I took it back. They replaced it. I drove the car about 2 miles and it didn't come on. So I assumed it was gone. Then the next time I started the car it went about 2 minutes and it came back on. Any ideas on what else it might be? I looked and they replaced the O2 sensor with a Bosch sensor. Could it be the Bosch sensor? I have never had anything but OEM. Any help would be greatly appreciated.

 

Our sensors are NTK, not Bosch.

 

DTC Diagnostic Chart
This should get you started self-diagnosing the problem.

 

If you had clutch replaced, have them check to make
sure wire that plugs into O2 sensor didn't get pinched
by bellhousing, tight fit at top where wire runs.

 

Apparently Bosch sensors must not be compatible with our cars or something. I went and got a Motorcraft sensor and changed it myself and the code went away. So I guess a heads up to everyone is if you have a O2 sensor go out just buy the Motorcraft replacement that way you won't have the same issue I did.