Question about 2003 Nissan Maxima

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Hi i have a nissan 350jm 2003, when i drive the car it takes off but after a few seconds it loses power as if im going from 255hp to 100hp, the car doesnt splutter of shake, the same happens in park or neutral, the first couple of revs you give it are sharp and powerful, then if you put ur foot down to rev again its rams up slowly?, just feels like a 3.5l turned into a 2.0l? i can hear the fuel pump working and removed it, it seems to be clean, no kinks in the fuel line aswell. auto electrician plugged in to computer and no resulting issues. Can anyone help me? the car still drives well. the mechanic couldnt find anything. thanks, mike

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Did you check the throttle positioning sensor? This is an often easily overlooked solution that many mechanics don't think of immediately because its so simple I guess it is easily forgotten.

Posted on Mar 28, 2011

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