Firstly, thanks for all above replies. Much appreciated. I had the suspension checked and everything was ok. So, I had the tracking done and the handling has improved but is still a bit squiffy. I am putting this down to an odd tyre, as I can't figure out what else it could be.

I also decided to jack the car up and check the Lambda sensors and wiring to see if I could figure out what was causing the codes. Well I did. It turns out my Nieces mechanic lied to her about replacing the Lambdas. The Pre cat Lambda looks like it has taken an hefty whack and is all bent out of shape. From what I could see it looks like it would be impossible to get it out without dropping a cat. However I'm not sure I would be able to get a new one in as it also looks like the exhaust system has tacken a whack and has been pushed/bent backwards, so ther isn't enough space to get one back in. It also looks like someone has had a go at getting the sensor out by whacking it with an hammer and screwdriver!!!






Anyway not sure what I can do about this so any advice would as ever be appreciated.