Car has a bad mab catless dp. It was throwing the cat inefficiency code. Installed vibrant defouler, fixed for a while. When installing I didnt unhook the sensor and spun the wires several times, ive since undone this due to a 02 code that kept popping up that wasnt for cats. Fast forward to today, three codes stored, brief definition below.
1) bank 1 sensor 2 lean
2) bank 1 sensor 2 heat circuit failure
3) bank 1 sensor 2 no activity

My buddy cleared them before I could write but we remember 2060,140,141? Could be wrong but those are for sure the definiton the scanner gave. Thoughts?

 

Bank1 is pre-cat O2. You need to replace it. or check for broken wire/bad connection.
https://www.cobaltss.net/forums/how-...nk-1-a-256591/

 

its an inline 4cly...there is only 1 bank...


sensor 1 is pre-cat, sensor 2 is post cat...

 

I was just thinking this, im my head I was saying, "i dont think this guys knows what hes talking about" no offence.

Also ive disconnected the sensor and unspun the wires and reconnected

 

umm u get thos when ur catless im sure, i know i did ( stock for winter and there gone)

 

Any other opinions?

 

Have a tuner disable them when you are running catless. Nature of the beast.

Bank 1 Sensor 2 is the post cat sensor.

 

My bad, guys. Just trying to help.

 

get an angled defouler, and replace the sensor.

problem solved