Possible Fuel Problems?

[DJC1]

Hi Ive got an R33 96 GTS-T and about two months ago it developed a problem were under full load or there abouts say 4500rpm-6000rpm it seems to be not getting enough fuel or there is some kind of restriction going on which severely impacts the most powerfull part of the gear range and consequently slows my car down it's as if the cutting out is all in time and makes a pretty chopped up sound as it's doing it hence the restriction.

Does any one know what this could be or had anything like this before?I notice it's much worse when the air is colder, perhaps to much air and not enough fuel?Also if it is a governing device why has it started to work only recently, change from summer to winter, colder air, more horsepower??

I have the following mods if it helps at all?

Large FMIC

Turbo back 3" exhaust

Pod filter & home job cold air intake (PVC up into the Pod)

Any advice would be appreciated

cheers

[Craved]

what boost pressure is it running?

[Gambit]

My guess is you've removed the 2 stage boost and/or upped it to .8 bar

I found mine overfuelled when I did this to mine, so I used an safc2 to trim around 8-10% out from 4300-6500 out and that "holding back" feeling went and she pulled like a train all the way through to the redline.

[MKDR33]

sounds like another coil pack problem..

more help here ---> http://www.skylinesaustralia.com/forums/in...howtopic=119403

[DJC1]

Stock boost, haven't touched it possibly gone up a little on it's own as these mods did give me quite a bit more power.

Gamit you got a new ECU for yours?Piggy back?