R33 Gtr - Engine Turned Off Under Boost.

[a6491]

Hey guys, have a question for ya's as I'm a little stumped

Over the weekend my mate and I installed coilpacks (which fixed boost cutting out), cat back exhaust, turbo timer and boost controller (haven't hooked it up to my custom gauge to read boost yet)

Under low boost, great to hear the typical turbo sounds.

Under high boost, in 3rd gear, on a long stretch I thought I'd seehow she goes. Got to 150 and the car turns off.. Electricals were functional (A/C, H/U, gauges, hazard lights) but engine turned off, no steering etc etc..

I know there is speed cut and boost cut but I don't think they react the was that it did in mine earlier this afternoon.

Any thoughts? mods carried out:

boost controller

turbo timer

cat back exhaust

pod filter

coil packs

coil overs

My guess is boost was set too high and drew too much making car shut off. I have dialed it back and now using low boost until problem is resolved (and get gauge to read again)

Hope that's of some help. Any other questions I'm happy to answer the best I can!

Edited April 14, 2013 by a6491

[GTSBoy]

There is no such thing as an "engine off" cut. Just doesn't happen without a fault of some sort. I would suspect a fuel supply problem, which is a very dangerous thing when you're beatign it up in 3rd gear!

[a6491]

Yeah I suspected it could be fuel supply, that is one of the many answers google tells me! but can't rely too much on google.. Kinda like googling why you're sick, you have terminal brain cancer from a cough and runny nose.

But I do have fuel pump lined up I can put in. Nothing for fuel rails yet though!

[GTSBoy]

Fuel rail not important. If you really want to diagnose this, you need to get it on a dyno, with a fuel pressure gauge and wideband hooked up so you can run it up as safely as possible and cut it off if it looks grim. Don't thrash it on the road fercrissake. Last thing we need is another dead 26.

[a6491]

She's right mate, I'm not one of those hoons who clutch kicks it down the main street where possible. I've had my fan, paid my dues. Once you put over 20k into something, it's not something you want dying on you from sheer stupidity!

But yeah I want to dyno it, does make it difficult being 130km away from nearest dyno. Hard to get time off work to do so! Cheers for the tip mate!

[a6491]

I mean, I also want to dyno but I have a shit tonne of other parts I want to get fitted before doing dyno! Only so much you can do on the weekends haha!

[GTSBoy]

Nononononono. Not "dyno" for a tune. Get it on a dyno simply to get it fixed. Crawl, then walk then run.