Mmmm fault codes after resonator delete?
#1
Senior Member
Thread Starter
Mmmm fault codes after resonator delete?
Had the resonator deleted and now throwing codes -
P0160 O2 sensor circuit no activity detected (bank2sensor2) and
P0140 O2 sensor circuit no activity detected (bank1sensor2)
The CEL does not come on though.![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
P0160 O2 sensor circuit no activity detected (bank2sensor2) and
P0140 O2 sensor circuit no activity detected (bank1sensor2)
The CEL does not come on though.
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
![](http://i824.photobucket.com/albums/zz168/PredatorAMG-55/Screenshot_2013-12-15-20-22-38_zps9011cd25.png)
Last edited by shaun.barnard; 12-15-2013 at 02:22 PM.
#2
Super Member
Potential causes of an P0160 code include:
The causes for a P0140 code are fairly few. They could be any of the following:
Good Luck
- Holes in exhaust near post cat o2 sensor
- Bad Bank 2, position 2, o2 sensor
- Wiring problem, melted harness, broken connectors, etc.
- Bad PCM
The causes for a P0140 code are fairly few. They could be any of the following:
- Shorted heater circuit in O2 sensor. (Usually requires replacement of heater circuit fuse in fuse block also)
- Shorted signal circuit in O2 sensor
- Melting of harness connector or wiring due to contact with exhaust system
- Water intrusion in harness connector or PCM connector
- Bad PCM
Good Luck
#5
Senior Member
Thread Starter
Well since this happened I've been getting the best gas mileage ever - best is 11l/100km which works out to 21.3831mpg, this is on the freeway at 120km/h (74.5645mph) Think this has something to do with it or has the engine finally run clean of the crap oil the previous owner put in?