1. make sure the engine is at normal operating temp
2. with car off, disconnect TPS
3. start car and rev a few times. Let the car idle.
4. adjust IACV black plastic screw to fine tune rpms. Alternatively, if rpms are way off, use the throttle plate screw first and then the IACV black screw.
5. Turn car off and reconnect TPS

whats a good idle? 750rpms casue i got place racing mounts and car shakes alot. now its at 600rpms

 

Your idle speed adjustment procedure is correct.

Your racing mounts are transmitting more engine vibrations into the cabin of the car.

750 RPM 's may smooth things out just a bit, but your always going to feel more engine vibrations with stiffer engine mounts.

 

yes i know that. but my idle is just 2 low so thanx bro

 

Is the IAC the big black(about 3/8s) screw on the EGR looking thing on the intake by the tb? I am having idle probs, it wont idle under 1k, I havent messed with the screw thing because I didnt know about it till now.


THANKS!

 

not only will the idle screw inside the engine bay affect your idle speed, but also will the ECU reset screw. make sure it is completely turned against the stop. if not, this can raise the idle speed. someone has a writeup link on here of how to adjust the ECU reset screw...its very simple.

 

i just adjust mine 2 850-900
when i unpluged both harness and them adjusted it, it goes up 2 1,100 when i pluged it back in its goes down 2 850 -900 is that 2 high can it hurt some thing?

 

YOur a 5 speed so it really wount hurt anything. That is border line hight thou.. If you can bring it down just to 750-800 the car might get better gas mileage.

 

its weird casue its goes down 2 700 then at the next light it'll be at 900 ??? any reason y? ac off.

 

I never had to adjust the idle on my Maxima but I know on come cars there is a "cold" (Start up-notice how much higher the idle is vs when warmed up) idle adjustment and "warm" idle adjustment.

 

yeah I think the cold does affect the idle on the max, mine idles about 1100 when cold but once it warms up it's down to 850 900. But I got a automatic so it may make a difference.
BTW: how do you rev the engine with the TPS dissconnected, or am I reading this wrong? In my experience with other cars it's been found that without the tps connected it don't rev worth a crap.