Idling High Mostly On Decelaration

[(OO Black 33 OO)]

If anyone can help would be appreciated

Doesnt always do it but will idle high when decelerating and when take out of gear sits on around 1200-1500 revs and wont go down unless i hit accelerator.

Friend mentioned AAC but cant find thread on here on how to do it, could it be caused by anything else?

I have aftermarket radiator bought from here, MSpec bit larger

Splitfire coilpacks

NGK platinum sparkplugs

Oil cooler

POD

Was happening even before i installed any of these on my car

Injectors need to be changed as ticking noise coming from them

Thanks for any help

[blind_elk]

The injectors are supposed to tick.

Check the TPS for "closed throttle" switching.

[(OO Black 33 OO)]

thanks so how do i do that?

the ticking is very excessive, can hear over noise of engine

[teng]

Maybe your throttle is jammed. Pressing the accelerator loosens the throttle so you car works fine for a while.

[mr moo]

sounds like it's either the throttle body sticking or you aac valve.

link to clean aac valve

i had the same problem, on my r33 gtst. did this above and fixed the problem.

[(OO Black 33 OO)]

thanks will give it a go this week sometime, hopefully fixes the problem

[(OO Black 33 OO)]

OK well idle thing has been happening still, now on deceleration i can hear it spluttering , and can see the revs not dropping fast enough like it does when its running ok.

Have done an oil flush, could it be anything to do with the exhaust, maybe a new muffler needed?

Cleaned AAC valve and didn't make much difference at all.

Cleaned AFM, was very dirty but didn't change anything.

Anyone had this problem and can help?

When i tap the accelerator to lower the revs they don't always drop....

[mad082]

maybe it's the o2 sensor

[pauly24]

blind elk, only r32 have a closed throttle switch. The topic starter has an R33 so no switch (unless his has an auto which im just presuming he hasnt)

[(OO Black 33 OO)]

No definately not auto

How much is a new O2 sensor??

Incase it is that, I want it fixed asap as is driving me nuts

Don't know about being a stuck throttle body as hitting the accelerator doesn't do much to it.