Is its shuddering at 2800 rpm like in my video? Is the check engine light still on? I still havnt fixed my issue yet as I'm not sure what the problem really is. I have p1650 code.. I need help pleaseI changed my Nissan latio 2009 computer box and had it reprogrammed. Afterwards I started the car but it would not rev past 2800 revpm. It's top speed only gets to 40 km/hr. I'm not sure what's wrong.