Hi guys, I had my Fabspeed Gen 1 Exhaust fitted a few weeks back and the ecu light has come on. I had the fault codes checked and they are showing up as... P0133 and P0153.....O2 SEnsor ahead of cat bank 1 and 2. Y is this??? Any input is very valued!!


I have tried disconnecting the battery for 30mins and reconnecting the light goes off and the throttle response is AMAZING!! But then the light comes back on after a 15min drive or so, or after starting and switching the car off 3-5 times between short journeys. The car still revs freely with the light on its just not as responsive.

 

I would check the O2 sensors make sure there installed properly, because you shouldn't be getting any codes with the Exhaust with Sport Cats. Also there should be more detail information with that Code, so I would try to get that first, so you can track down the issue.
thanks,

 

Can I just check, is it the sensor with the Black Squareish/rectangular connector that is the PRE CAT sensor and the sensor with the grey connector and orange rubber seal is the AFTER CAT sensor??? Thanks!!