R33 Gts-t Got A Couple Of Issues

[Tommmo]

Hey Guys,

i've just completed a few mods to what was previously my stock R25DET R33

Here's a list of mods:

3inch Exhaust, front pipe back, including high flow cat

HKS pod

Greddy FMIC

HKS Electronic Boost Controller

Now there have been a couple of issues that have come up as a result.

The car was previously runinng perfectly, but now that i have installed these mods, it seems to be hunting a fair bit on start.

After driving it for a few minutes, it usually works fine.

The other things that scared the crap out of me the other night is when i had boost up around 14psi and the turbo just suddenly cut out around 4,500-5,000rpm

What can i do to resolve these issues??

Thanks guys

Edited May 21, 2007 by Tommmo

[S04R3R]

Check all your vacuum lines to start off with that can cause some problems. As for the turbo cutting out it could be fuel cut. Dont know too much about nissans but i know with some turbo subarus once it his boost cut it will bring a limiter it. Do you have anything like a fuel cut defender?

It would probablly be with runnnig a fault check on your ecu to see what fault codes it throws up.

[LatinR33]

Hey I reckon you check your TPS (throttle position switch) this can be affected. 14 psi is too much on a stock turbo turn the boost down to 10psi to be safe. Your pod filter would probs be causing probs too cause its sucking in hot air. Id suggest get some kind of aftermarket ecu or atleast fuel controller piggyback. If you search you'd see this is covered tonnes of times. good luck mate hope it all works out hate hearing of a unhealthy R33. also go to a mechanic and get a consult plugged into your car and when your car starts to hunt they'll tell ya exactly whats up.

Edited May 21, 2007 by LatinR33

[Tommmo]

no i dont have a fuel cut, i didnt think i was going to need one cos it didnt happen before.

Just the other night.. im thinking the cold air might have had something to do with it

[S04R3R]

SAFC is your friend

[Tommmo]

this might sound stupid,

but a fuel cut defender and an SAFC do the same thing right???

[Tommmo]

Hey I reckon you check your TPS (throttle position switch) this can be affected. 14 psi is too much on a stock turbo turn the boost down to 10psi to be safe.

I run it at 10psi all the time, i only have it at 14psi occasionally as i've heard they can handle this much. (i hope)

[blind_elk]

Engine wasn't designed (or programmed) to ingest air at 14psi. Hold it back (maybe 12psi), and it should be ok.

If you are running stock ECU, try a reset to have the ECU re-learn the startup.

[LatinR33]

14 psi on a stock R33 turbo??? who told you that?? turbo wont last that long. On the safe side i wouldnt boost past 10psi. R33 ecu's have been known to crap themselves even at 10psi.

[d00dz]

Check all hoses as could be a leak somewhere since the tubing might be old and flakey..

You can try cleaning you AAC and resetting the idle -> http://www.skylinesaustralia.com/forums/in...howtopic=110431

Also sounds like R&R'ing at high rpm/ high boost. Since night = more oxygen in air and car R&R'ing (Rich and Retarding)