R33 Idle

[engo]

ey all.... ahh just a quick question... i have a r33 .. i need to get it tuned i know!!!.... but for some reason.. it idles fine most of the time...but if i bump up the revs a bit and them take my foot of the accel. so the revs drop... it will hunt... like seriously hunt... sometimes it will just konck out.. other times it will just hunt but about to die... usually if i take for a squirt.. or sometimes when i just have to stop at lights and take my foot of the accel at 2000rpm . . . i dont think its the aac valve or n e thin there . . maybe fuel ??... im running a power fc with t04e high mount and all the rest of it... any ideas n e one??

[wlspn]

There is a thread on this, either in the DIY/ tutorial section or the forced induction reference guide. Was having a read just the other day... A lot of people blame atmospherical-venting BOVs & some people seem to have had luck directly earthing the fuel pump to chassis in the boot. Try find it & have a read, may give you some ideas. My RB20 used to do it almost every time I stopped & it drove me nuts!

[_Ryan_]

Clean AFM with CO contact cleaner, but if it drives fun throughout the rev ranges prob isnt this. READ: http://wiki.r31skylineclub.com/index.php?title=AFM

Mine was my TPS, if you disconnect the TPS, does it idle fine?

Does o2 effect idle?

and of course, if it dies when braking at slow speed and turning etc, clean the aac assembly at the back on the plenum.

[JonnoHR31]

o2 is ignored at idle

[rob82]

Check you BOV actually opens under like 10" of vacuum - most aftermarket ones dont because they are crap - aka turbosmart.

[rob82]

o2 is ignored at idle

Thats is 100% not true.

[gotRICE?]

Thats is 100% not true.

Agree'd. Its only ignored on boost.