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240sxftww
06-17-2010, 03:29 PM
theres 3 problems ;[

1. something happened last week, but i ignored it till today.

when my foot was on the gas at a steady 40mph, for some reason it felt like i lost power. i didnt let take my foot off my gas either. so i would be going at a 40mph rate and couple of secs later it goes down unless i accelerate.

could it be my fuel?

2. when i start my car
my idle jumps up and down btw

900-500 rpm.

it would go away if i gas on it once though.
idk if its a common thing or a problem.

3. today while driving. i notice whenever i gas it over 2.5k rpm. my water temp meter does down. and when i let go of the gas it goes back up.


heeelppp pleaseeee

slider2828
06-17-2010, 03:31 PM
check for vacuum leak....

s13silvia123
06-17-2010, 09:09 PM
as stated above and if its not that get a new IAVC or clean it

nismoracingsx
06-18-2010, 03:01 AM
throttle body cleaner + rag should fix the idle issue.

temp. problem...thermostat stuck open?