Could anyone tell me, what might be wrong with my car, it starts like bucking and stuff, when i drive it. someone said it might be the o2 sensor, and another told me it was my gascap letting in air. it did this before but it went away for a month but now its back again, whats wrong?please tell me!

 

it could be a number of things. fuel pump, fuel filter, injectors.. unless you are a DIY kind of person I would take it to a mechanic where it can be diagnosed quickly.

Fro

 

Don't count on many people to easily diagnose this. My cars been to 3 Nissan dealerships and 2 independant places and its still ****ed and back at Nissan.