Was P0133 code and now other codes

[intravino]

Hey Gang,


I had a P0133 code, I replaced the Upstream O2 sensor with a brand new one.

Now. I have : P1131 and P0135 Codes.

My car runs great, the acceleration is 50 % better since I've changed the upstream sensor.

Can you please tell me where to start?


Thanks,

96 Mystique MTX Zetec 210 000 KM.

 

[Tony2005]

Circuit fault.

Make sure the O2 sensor connector is clean and installed properly. If it is, then check to make sure wiring is not chaffed or broken.

 

[intravino]

Found IT before

Found IT before

I decided this morning as a fluke to spray some MG Chemicals Super Contact Cleaner into the female connector of the sensor.

Voila, fixed.

Thnaks Tony

 

[Tony2005]

Glad it worked out for you. It has happened to me in the past and I just used WD40 on the contacts and then wiped it off with paper towels.