Codes P0133 & P0153

[onmybus]

Good Morning!

I have a 2004 Land Rover Discovery with 146,000 miles(new to me) and I am battling with some codes.

The original codes I was throwing were P0420, P0430, P1412, P1415.

Then the O2 Upstream and Down Sensors were replaced with parts from British Atlantic.

Since the O2 Sensor replacements, I am now throwing codes, P0133, P0153, P1412, P1415.

Any thoughts on what the problem may be? Or where I should start trouble shooting. I have looked on the threads and have seen bits and pieces of ideas such as bad cat, frayed wires etc... but was unsure if it could be something different with having these all at the same time.

Thank you for your time.
Jenn

 

[joey]

If new to you, any idea when the plugs and wires were changed last? air filter? MAF cleaned? Way to many variables.

 

[onmybus]

Thank you for the response. O2 sensors were just put in. Going to check the MAF over the weekend and go from there!

 

[RR06 hse warrior]

I’m having the same codes p0133 and P0153. I’m suspecting a vacuum leak. Did you fix your codes ? I know this is an old post but worth a try
Thanks