Purchased a brand new Nissan Z 3 weeks ago in Australia only have 500 kms on car check engine light on vehicle in limp mode my codes are P34B1 and P34B0 I have an appointment with Nissan on Tuesday next week.
Just a little bit more information to the whole story car sat on lot for 9 months vehicle was started up regularly on lot only doing short trips oil was quite dark and had a slight smell of fuel so all I've done is replaced oil and genuine oil filter use the correct oil penrite 0W-20 API SP made sure oil level was correct on dipstick at the h mark and another thing I did was put $60 of premium 98 fuel in the car also other thing I did which I sort of regret doing is I gave the engine a gentle wash with the hose didn't blow dry after finished went for a drive the next day all seemed okay car sat for 4 days then went for another drive stopped at the shop when I re-entered the vehicle and started it that's when the check engine light came on and vehicle has reduced performance in limp mode. From now on I will never hose the engine.