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R33 Wont Idle & Seems To Fuel Up At 4500Rpm

Autumn33

By Autumn33,
in Engines & Forced Induction

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Autumn33 Mentor

Autumn33

Posted
Posted (edited)

Hey guys having some trouble with my 33 it wont idle at all when cold & seems to fuel up at around 4500-5000rpm then its fine for awhile then dose it again

ive read a few pages on here saying coils but i have new spitfire coils & its still doing it

i was thinking afm but i have no idea

any help would be greatly appreciated,

Here are a few specs on the car that might help you guys work it out

S1 R33 GTST

S2 RB25 DET, rb26 crank,forged rods & pistons ACL race bearing and gasket set, metal head gasket.

ported,polished & port matched head

Nismo N1 oil & water pumps.

splitfire coil packs

Turbo smart fuel pressure regulator

Front facing plenum

FMIC

stock rb25 turbo running 13psi

stock ecu

Edited by Autumn33
89CAL Grand Master

89CAL

Posted
Posted

Hey guys having some trouble with my 33 it wont idle at all when cold & seems to fuel up at around 4500-5000rpm then its fine for awhile then dose it again

ive read a few pages on here saying coils but i have new spitfire coils & its still doing it

i was thinking afm but i have no idea

any help would be greatly appreciated,

Here are a few specs on the car that might help you guys work it out

S1 R33 GTST

S2 RB25 DET, rb26 crank,forged rods & pistons ACL race bearing and gasket set, metal head gasket.

ported,polished & port matched head

Nismo N1 oil & water pumps.

splitfire coil packs

Turbo smart fuel pressure regulator

Front facing plenum

FMIC

stock rb25 turbo running 13psi

stock ecu

The combination of these 3, plus the different engine internals

There are a million and one threads about cars with stock ECU's and more boost running like crap, Rich and Retard etc etc.

Aftermarket ECU + Tune will = Engine running better

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

thats exactly why i asked my above question.

but if the car has been running for a year before any problems arrised then might be something else.

but then again he has only had the car for a month so the issues may have always been there

Autumn33 Mentor

Autumn33

Posted
  • Author
Posted

thanks guys, it was running fine all month till the past week now its running crap house as stated above, thanks for all your help

any ideas on a computer to run? i can get a emanage blue would that be a good idea or ? any suggestions would be awesome thanks

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

You will need a Z32 ecu (no Nistune for R33) - have a look at the Nistune site and read the nistune thread here. Or if you can afford it Link/Vipec . You don't mention it but maybe you already have a bigger (3in - 4in) exhaust but with an aftermarket ecu and exhaust you will be all set for a bigger turbo and injectors and 300+kw!

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