hello...to all nissan owner here...sorry for my disturbance...i own a Nissan Sentra N16 2004 and i am having a big problem currently...hope to get advise from you all...

okie...i have just changed my battery few weeks ago...once i changed it, the trouble started...

1. when i start my engine, the car seems like turning off (die fire/sei for) but it goes smooth after that...
2. okie..even though it looks like smooth after the "sei for" situation, the car might turning off (totally sei for) by itself suddenly when i am driving on the road...no matter it is 80km/j, 100km/j, or 120km/j... OR it will 'chok' first before it 'sei for'.............



to all experts here...anyone knows why this can happen? i'm headache enough about this...can anyone here tells me what to do???


thank you very much for your help...i appreciate it...

best regards...

why need to change these two things after i have just changed my battery??? is it necessary?? how much these two sensors cost??

thank you...