Need HElP 2004 altima 4banner

[rvargas94]

i was getting these code P0725 ,so i chanded the speed sensor a few days pass buy it pops up again so i just erase it with my scanner so anther week passes and p0725 and p0335 both pop up . so i scan it and its the cps senor so i got to autozone and replace both cam and crank senor , i noticed they didnt look the same ?my SES light went off but i can still feel the car slugish . i tryed to pass a vehicle and it kinda lagged to get up there ? you guys have any idea im hella stumped ? need help tired of buying senors ?

[NISSANFREAK]

Ive heard alot of complaints from people that come to nissan because the autozone sensors are shit.

[rvargas94]

yup they are they suck balls and gas too i got a kn airfliter to help but no i think im goin to have to buy the dealership brand ?

[nislo]

the cam and crank sensors have been known to go bad on the 2.5. the cam sensors on the 3.5 go bad too, they leak oil internally, the old one will be plastic and the new one from nissan has a metal cover. i would use a nissan sensor and make sure to clean any oil out of connector with brake cleaner and compressed air. The new nissan sensor has to have the connector clipped on before installing the sensor in block because they changed the way the connector sits on the sensor. you may have another issue that is causing your sluggish-ness. If you can't finger it out let us know more.

[rvargas94]

i have changed those two senors but i have a question do you guys know if i have to reprogram the computer (ecm) ?

[Mhope]

I would have to have the ecm part # to see if there is a reprogam, some have a reprogram but i doubt it will fix the problem of being sluggish. I would spring for the oem sensors, install them , then have someone do a idle air volume learn (iavl) this will more than likely fix your problem of being sluggish. And who told you where to find the crank sensor? on the 2.4 they are kinda hidden. lol. the iavl will more than likely have to be done at the dealer or a import shop with a consult II. :thumb:

[rvargas94]

yea the crank sensor was a bitch to change but and unplug cause your hand just bearly fit ,, man this car have giving me so many problem like first catalic converter going out but i just recenlty smoged it and it passed ,smh

[Mhope]

If you go through the top on the engine the crank sensor is easier. Remove the air cleaner , the engine cover, and then reach your hand around under the tbody to the back of the motor while looking down through the intake runners it is a much shorter repair process.

[rvargas94]

i got on anther forum and seen were it was at (crank sensor )im all about doing as much as i can. on my 99 civic si i did everything on it from the poor mans type r to chipping the computer