04 D2
tl;dr: ECU reported bad cats, changed y-pipe. Now it's throwing P0134, O2 sensor bank 1 sensor 1 no activity. Could it be an exhaust leak or is it more likely that I yanked a wire somewhere on the O2 sensor?
So I recently rebuilt the engine (in no small part thanks to Dweb and its users). After chasing codes and vacuum leaks, I got it down to P0430 and P0420 which pointed to bad cats. Not surprised as it had been running rich for who knows how long before I bought this thing. So I replaced the Y-pipe with a new one off of ebay.
Now, as the title says, I'm getting a single code [ P0134 ] which says "o2 sensor no activity for bank 1 sensor 1". My first thought was that maybe I yanked a wire somewhere on the O2 sensor, but after some googling it looks like there's a few things that could throw this code. An exhaust leak is possible, but I would think that would also throw lean codes.
Both upstream O2s are brand new Bosch units.
Any thoughts from you wise Rover gurus?
tl;dr: ECU reported bad cats, changed y-pipe. Now it's throwing P0134, O2 sensor bank 1 sensor 1 no activity. Could it be an exhaust leak or is it more likely that I yanked a wire somewhere on the O2 sensor?
So I recently rebuilt the engine (in no small part thanks to Dweb and its users). After chasing codes and vacuum leaks, I got it down to P0430 and P0420 which pointed to bad cats. Not surprised as it had been running rich for who knows how long before I bought this thing. So I replaced the Y-pipe with a new one off of ebay.
Now, as the title says, I'm getting a single code [ P0134 ] which says "o2 sensor no activity for bank 1 sensor 1". My first thought was that maybe I yanked a wire somewhere on the O2 sensor, but after some googling it looks like there's a few things that could throw this code. An exhaust leak is possible, but I would think that would also throw lean codes.
Both upstream O2s are brand new Bosch units.
Any thoughts from you wise Rover gurus?
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