DumbFalang

Oh dear - that's what Nissan and my wife have been saying all along. Thanks for confirming ????

Thanks for the suggestions guys. I have had the CVT fluid changed, but I will double check when it was done last. The TPS sensor I replaced was a Nissan factory part. I found out that when a mass airflow sensor begins to fail, it will typically generate an error code or “Check Engine light.” There is no Check Engine Light and no error code which makes me want to look into what ThailandRyan suggested:- Find out if the ECM can be flashed and reset. Is ECM and EMU (mentioned by hansombeast) the same thing?

We have had a problem with our Juke for over a year now and the wife is pushing harder for us to sell it. Nissan Hang Dong (Chang Mai) have admitted they cannot isolate the cause, so I've been on my own searching various forums. The main symptom is acceleration without the driver pressing the gas pedal. I live up in the mountains and it is much worse when not on flat ground. I barely notice it when I'm driving in the city. My first attempt at a fix was replacing the throttle position sensor. It's job: " to tell the vehicle’s computer how far the throttle is open and how hard the accelerator is being pressed. The computer is then able to adjust the fuel/air mixture going to the engine so that is stays at an appropriate level. If the throttle position sensor is not working properly, it may be sending incorrect information to the vehicle’s computer. The computer may then not provide the engine with the correct amount of air while accelerating, causing a hesitation sensation." I get the "hesitation sensation" too, so it was worth a shot at Bt7000. When it was installed, the problem didn't go away but it improved quite a lot. Over the next few weeks and months it has got a lot worse so now I'm at a loss whether or not to carry on throwing money at it or admit defeat and sell it on. The Nissan tech has always hinted at the automatic transmission system as they are so bad on the Juke and our first one had to be replaced at around 50K. Maybe he's right - I just don't know what symptoms a failing CVT can show up. Any of you guys know if the automatic system could cause the surging I am experiencing? Any suggestions on other things to try?