R32 Gtr Idle Issue

[James_03]

Hey guys have a bit of a problem with idle, stock rb26 engine with apexi valves thats it.

Runs great, and idles fine too, but when you give it some gas it will rev fine but when you take your foot off completely the revs will drop and it will almost die, then revs will climb and it will idle fine.

Also whilst driving if you boot it then back off the throttle completely it will stall whilst driving, only sometimes but. I was suspect on the fuel filter as it appeared to be the orginal jecs item so I have replaced it along with all the fuel hoses too with a bosch item. Also if it gets under half a tank of fuel it will kind of fuel cut whilst booting it in 1st and 2nd.

I am suspect on the fuel pump itself now but what do you guys think next point of call should be. No error codes either.

[R31Nismoid]

Apexi BOV's?

Thats there the problem begins and ends. Put the stock items back on and you wont have an issue

[James_03]

From a search sounds like it might be a atmo bov issue.

Might start with that then TPS, and AFM's.

[R31Nismoid]

Yep, i put the $$ on the BOVs, then AFM cleaning.

[James_03]

yeah cool might replace them i think, i bought it with the apexi's so might have to hunt around for some stock items.

I personally would have left the stock items on myself but anyway.

[salad]

tune? i got a normal remap and it used to idle like crap but then sam retuned it on a dyno and made it idle a hell of a lot better. i used to have the same problem on the track, give the car a lot of stick and then come to a halt and the car would stall, would have to use the accelerator a little to keep it form stalling