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Gt-r Idle?

GodziRRa

By GodziRRa,
in General Maintenance

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GodziRRa Enthusiast

GodziRRa

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Posted (edited)

Hi guys!!

My GT-R is idling at 1050 rpm. Already cleaned the AAC valve before, butterflies were also checked... the car runs fine though. It's just the idle that keeps me wondering.

So GT-R gurus, is it just fine or there is something wrong w/ it? :/

Thanks in advance guys!

Edited by GodziRRa
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Gtir-keiron Community Regular

Gtir-keiron

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My mate has a bit of poly pipe made up with a compressor attachment and hooks it up befor the intercooler and pushes compressed air into the plenum via the intercooler.

start psi low and move it up to around 20 psi you will find any leaks at all if they are there.Keep a spray bottle with water handy and a peice of hollow pipe to listen threw :).

motor off of coarse.

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GodziRRa Enthusiast

GodziRRa

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My mate has a bit of poly pipe made up with a compressor attachment and hooks it up befor the intercooler and pushes compressed air into the plenum via the intercooler.

start psi low and move it up to around 20 psi you will find any leaks at all if they are there.Keep a spray bottle with water handy and a peice of hollow pipe to listen threw ;) .

motor off of coarse.

Sounds like a lot of work. :D

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MrStabby Grand Master

MrStabby

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The ECU needs to be put into base-idle mode or else when you adjust that screw the ECU will just compensate.

Moo - is that info from the shop manual? My memory is that you unplug the electric connector to the AAC to stop the compensation, then adjust the idle to where you want it, then reconnect.

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NewKleer Mentor

NewKleer

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another cheating way of adjusting idle is to have car warmed up, then watch AAC on consult and turn idle screw until its around 20-25. so depending if the AAC starts at ~20 (then u turn it until AAC starts to go up, then stop) or if it starts high (e.g. 40+) then you're turning it so AAC goes down until it stops going down. but this is when the car is running normally and just having minor issues, if there is something else causing high idle then this might not work.

e.g. i used to have warm start stalls due to AAC being too high (40-50) as idle was set too low and not having enough room to catch falling idle.

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