crzyballa33

my car is goin nuts.
the rpm goes up and down while im in park
it feels as if the car keeps going back and forth between gears while im driving.
i hav a 2kmaxSE wuts goin on? what do i do to fix it?

futemv

ever clean your throttle body?

crzyballa33

im not familiar with the car's inside
i wouldnt even know how and where to begin?
a mechanic suggested i change the valve body (something like that)

jesse

iTrader: (5)

could be the spark plugs also

crzyballa33

well the thing is...the spark plugs were supposedly replaced with the last tune up. i got that 80k mile service from nissan, where they do all those tests and flush everything and check/replace everything...its like pretty expensive service. RIGHT AFTER that it started going crazy

CCx

iTrader: (2)

try cleaning the TB first, it's your cheapest and easiest option (will cost you less than $10) - if you've never worked on a car before, you could take it somewhere, but then it comes non-cheap...i'd suggest doing it yourself, there's a procedure on www.motorvate.ca for cleaning it

futemv

isnt the throttle body cleaning included in the 80K service?

crzyballa33

thanx for your help. is there by any chance a page that shows how to clean it for a maxima? that looked like a different car

crzyballa33

it would make sense...but i dont remember. ill probably try and look at nissans description of the 80k service again

futemv

That's a 4th gen Maxima, it's not that different on a 2k Max, and if its not included in the service, I highly recommend that you do that before anything else. I did it for the first time the other day and it wasnt hard at all.

Lawrenceismynam

iTrader: (1)

I had the same problem, so i brought it to the stealership and they told me it was MAF

MannyNJ2k2max

iTrader: (3)

check your air box for loose connections/leaks...or if you have an intake
if its not that could be ignition related (coils)

CCx

iTrader: (2)

Yep, that's a 4th gen alright....it's almost an identical process for the 5th gen...while you have it taken apart, you can try cleaning the MAF with electronics cleaner too, but be real careful with that...good luck!

Fezzik

iTrader: (2)

Do you lights dim any at all when driving the car. Like does it flicker a lot when the heater kicks in or the a/c. A possible grounding issue. But the T/B and spark plugs are the best start.

crzyballa33

no theres no electrical problem that i can see. but it just revs itself up and down while im in park. wow, i got lots of different things to check. again im not exactly mechanically smart, so i may want to take it to nissan. by the way...wut is the MAF, is that the oxygen sensor? because i had those replaced with that 80k service.

futemv

MAF is the mass air flow sensor. Sits after the air filter and detects the amount of air coming in through the intake

crzyballa33

ok thanx. i believe that was fixed, because the mechanic at nissan was complaining to me that I should not hav an aftermarket intake because it messes up your car. so he put back the original intake.

crzyballa33

by the way....another question...about how much exactly is the price of the throttle body for the max2kse in case i end up havin to get one.

Y2K1JKSE

awesome i'll have to do this sometime soon now that the weather outside isnt so frightful :-)

crzyballa33

i took the car to the dealership
he said its the valve body or something
i asked if i can clean it, he said no
he also added that the part is on back order due to heavy demand and that nissan is redesigning that part because of malfunctions
shouldnt there be a call back for something like that??

Fezzik

iTrader: (2)

another thing to check. PVC valve. I was talkin to my friend who's in the 4th gen forums, Cullen on the org. about idle and that's a possiblity that its getting stuck cause it's dirty.

Redesigning the part. I wonder if this has to do with a few people loosing screws from the butterfly? This is news to me. Who exactly said this?