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R33 Gts-t Got A Couple Of Issues

Tommmo

By Tommmo,
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Tommmo Proficient

Tommmo

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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 by Tommmo
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S04R3R Rising Star

S04R3R

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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 Experienced

LatinR33

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Posted (edited)

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 by LatinR33
Tommmo Proficient

Tommmo

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Posted
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 Grand Master

blind_elk

Posted
Posted

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.

d00dz Grand Master

d00dz

Posted
Posted

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)

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