Good Morning,
So I'm having problems with my 2007 TB48 GU. The engine light is on and after taking it to Nissan they tell me it could be any of the above problems. Now I get that it could be the MAF (I've now replaced and its still on) or any of the four oxygen sensors (I've replaced the two upper ones so far), but how could it possibly be the cat which is half way down the exhaust? There are no sensors past that point so how could it be throwing a code?
The fuel economy, if you could call it that, has just gone from bad to absolutely shocking so if there is some Guru that can maybe clarify my Cat question I would be very grateful.
Thanks Mick