my car SUCKS

[nstabl]

so i went to smog for my last try today (i have one week before my car is no longer allowed on the streets)

this is the issue. my idle is too high.

i turned the screw on the ecu, nothing.i messed with timing and the only way to get it at 700-800 rpm made my car undrivable! so slow and boggy and sluggish. PLEASE HELP

im not sure what to do

[nstabl]

heellllpppp!

[DMan II-40]

turned the screw on the ECU? that is so u can reset it and read the codes. That has nothing to do with your idle.

Don't know where it is because I haven't had to mess with it yet, but I believe you can adjust your idle with a screw on your throttle body. Someone else confirm this, as I am not 100% sure on this.

[Razi]

The back of your intake manifold, there is the IACV with a screw on it.Turn it to change the idle.

Anyways, here are the FSMs.zerothread/311075

[nissanman04]

Yeah, just turn the screw on the IACV. Adjusting your timing is not how you set the idle, and yes, it will make your car run like crap if that's how you decide to do it.

[nstabl]

The back of your intake manifold, there is the IACV with a screw on it.Turn it to change the idle.

Anyways, here are the FSMs.zerothread/311075

pic of this anyone?

[adrianfromthecastle]

pic of this anyone?

dude, he gave you a link to the factory service manuals. Have you at least tried clicking the link and helping yourself out? Do you know what your intake manifold looks like? Facing your engine bay, its the crazy cast metal stuff on the left side of your engine. I haven't seen a sohc up close in a while, but somewhere on there there should be a little plastic screw the size of... a small screw. That is your AICV (air idle control valve). Lefty loosy = raise RPM / righty tighty = lower rpm. Don't turn too much, I think its like every half revolution is like 500 rpms or something. Turn it a little, then rev the throttle cable a little bit, then check your idle to see where its at.

[Salem240]

^use the search bar I know that its around here somewhere, I've seen it. I dont have a pic but I know that its toward the bottom of the intake on the runner near the firewall & you have to use a phillips head to adjust it.

[Jdmstyles]

From what I remember turning it counterclockwise is raising the idle.

It should be a copper color or yellow looking flat head screw assuming its a ka24e in your 89'.

I adjusted mine to about 1.1-1.2k rpm and barely passed the smog. Mind you, that's with a new 02 sensor and simple tune up. Anything below 1k rpm will cause shaking most likely due to the fact that its an old arseee engine with old arseee engine mounts D:

[nstabl]

From what I remember turning it counterclockwise is raising the idle.

It should be a copper color or yellow looking flat head screw assuming its a ka24e in your 89'.

I adjusted mine to about 1.1-1.2k rpm and barely passed the smog. Mind you, that's with a new 02 sensor and simple tune up. Anything below 1k rpm will cause shaking most likely due to the fact that its an old arseee engine with old arseee engine mounts D:

errr well they are telling me if my rpm is not exactly 650-850 its an AUTOMATIC fail. i passed the entire smog check!!! except that one part! anyhow im going out (in the damn rain) to try and figure out where the iacv screw is... will update very soon!

thanks guys sorry for all the questions, i was on the forums on my iphone all day yest. and trying to figure it out and its already a pain as it is browsing on that thing

-mat

[OutToWinPAHC]

He has a KA24E when I pulled y engine the KAE ECU had the idle screw on the ECU in big bold letters. But check check the lines, clean your AIC and TB, could be gunked up and not closing due to interference.

[nstabl]

so i passed for the idle (thanks for helping me with the screw) but i FAILED MAJORLY. screw it i tried what i could to pass legally but egr won't let me so time to get to 'work' if you know what i mean. $200 and problem is solved

thanks guys my car idles much nicer now, i was at 1100-1200 before!