well i took apart my upper intake manifold two weeks back, at that time i cleaned up all the components there, the IACV, egr tube, and the whole manifold, which was so black on the inside. after that, i put it all back together. now i idle just a tad bit lower than usual, but wat i want to ask is this. . . my idle is deferent when im in park than when im in drive stopped at a light. its actually lower when im in drive at a light. the pictures here should show my idle. the first one is the idle when im drive, like at a stop light. the second picture is when its idling when i have the car in park. im thiknin i just might have to raise the idle, but im not too sure. someone just let me know your opinion or if something like this happened to you too and what you did.
P.S. my maxima is a 96 GLE Auto with 160,000 miles

 

its normal....

 

+1
yea, there is more stress on your motor when in D

 

Absolutely normal,
Have you felt any performance difference ? acceleration ? MPG ? tell us your thoughts

 

thanks guys, just making sure. but it does shake a little bit when in drive. thats why i thought i should raise the idle a little bit, but thanks for the quick feedback. but yea it does accelarate way way smoother, mpg went up a lil, i can feel that it doesnt waste as much gas. just dont know excatly how much. but the best part is when the A/C is on, the rpm goes up a little, and the car then idles so smoothly, i can barely tell its on. really recomend to anyone

 

whats your idle in Neutral?

 

while your doing maintnence you should probably clean your injectors, get some new NGK Plats, and a new fuel and air filter.

 

that was already done like two months ago, new fuel filter, the plugs are NGK iridium, and the air filter was a k&n filter, also changed the pcv valve with nissan's. the neutral idle is the same as in park.

 

If you feel that your idle is too low, then raise it up (properly).