Any Ideas?

[konect]

http://www.nissansilvia.com/forums/index.p...howtopic=200454

[Traditimeour]

i get a similar prob with mine, no intercooler, no turbo thou.

i back off, or just cruising, then stomp it, sputters then it goes fine.

Fuel pump maybe?

[Mr Eps]

coilpacks.

one word. splitfires.

edit: before writing a post i probably should have read the ns thread, and realised that you just installed a fmic, sorry i just got up!

could be coils, my bet is on piping actually

Edited November 22, 2006 by Mr Eps

[konect]

coilpacks.

one word. splitfires.

edit: before writing a post i probably should have read the ns thread, and realised that you just installed a fmic, sorry i just got up!

could be coils, my bet is on piping actually

lol 3 options there

Well its not happening all the time so thats why I dont think its cooler piping or coils. I am thinking fuel pump atm, ie back off and it cuts the fuel and then when I punch it it cant pump through enough to keep up the pressure.

[Mr Eps]

nah rb's are notorious for this problem my friend's skyline had it

when he floors it it cuts out n sputters

[toffy]

sounds to me like you have a air leak somewhere, especially when you said the boost guage fluctuates, check over all your pipework mate, also check you havent left a vacuum hose off somewhere oh and how is it idling?

[konect]

Idles fine. Boosts fine normally like I get go through the gears with only a slight miss in 3rd and 4th.

Doesnt get really bad until I back off and punch it again like I said in the ns thread. Lol im so cheap dont want to pay to fix it

[toffy]

check your fuel pressure mate, then your afr's . actually swap your old cooler back on first, then go from there

[huddy]

vacuum hoses?

O2 sensor plugged in?

cant get it to miss at idle so cant check your coilpacks, but maybe do the silicon thing on them anyway - there's a DIY somewhere on skylines...

if it was a flat out cooler pipe it would stall at idle, but if its only a slight leak under load then i'm not sure... but in theory it might cut out as you change gears and when you release the clutch it could fire up the engine again...

just throwing some things in the air here, hope it helps

[konect]

I unplugged the O2 and replugged it cuz the car wouldnt even move so its not that.

Gonna chuck old cooler back on this w/e and see how that works out haha