Big Problems With My R33 Gtst

[AndyNor]

Hi. had some big problems with my gtst r33 s2. Was driving from perth to geraldton and half way there the car suddently died straigt of. no bad sounds or anything just straigt off died. Waited 15 minutes and the car fired up like nothing ever happend. Kept driving for another 30-45 min and then i died of the same way again. only this time it was a pain to get going again. when i tryed to start it, it just fired one crank but that was all. got it running again eventually and kept going for another 10 min until it happend again.

Had the same pain getting it started again but finally made it to a service station. The tank was now half full just about. Filled 24l in it a nd kept driving. Didnt have to many choices far out in nothing. Was driving very carefully (like 80) in 110 sone all the way to grealdton. Not boosting or anything and we made it without any other problems.

The day after (yesterday) we took of from Geraldton to Exmouth. Was pretty worried at this point so stopped at Nissan. They sent me along to another guy who coudnt help me at all. So I decided to push it and took of for EX. Stopped every 100-150km and had a 10 min brake + topping off the fuel. Did the whole trip to EX without missing a single fire.

Still im a bit worried since it can happen again. When i had the problem the first time the tank was 3/4 full. when it started acting up very bad the tank was half full. So the trip from Geraldton to EX. The tank never had a chance to go under 3/4 at all. Thats the only difference i can come off. The car has a Blitz dual boost controller. And allsow the turbo timer seem to be acting up some times with not keeping the car running after i take the key. Guess this can be something to. Bad connnection somewhere.

Just wanted to check if anyone had any idea of what it coud be... Still in EX now (snorkeled with whale sharks today, woohoo ) so i will be going down to perth again this comming week. Crossing my fingers it wont be a problem.

cheers

[r31slpr]

I don't really have any suggestions on whats causing it other than maybe a blocked fuel filter, or lots of crap in your tank. But if it dies again near geraldton you'd be better off getting it towed back to perth, none of the shops up there know anything about imports except for one guy but i can't remember where he works.

[conan7772]

I had a problem with passengers in the front seat, pressing their feet into the ecu loom, cutting the power supply to it.

Took me a while to work it out, problem only occurred with a passenger.

You may have loose connection.

[AndyNor]

Thats actually a pretty good tip. The passenger posistion is way more laid back and streched out. Will check it tomorrow.

[AngryRB]

hey,

Im probably way off, but throwing it out there, my daily an el falcon just died a week back and its apparently a crank sensor, when that happens they become hard to start though, and eventually just die for good,

but then again i dunno if that applies to the skyline, just thought id mention it..

[AndyNor]

jea ive been thinking the same though. but since it runs perfectly now i doubt it. have checkd the connection there to.

[The Mafia]

you may have answered your own question - You said the turbo timer may be acting up because it is not working properly? You do realise that it controls the ignition?

Remove it an throw it in the bin anway. If you can't drive relatively steady in the last 30 seconds of your journey, you're a tool.

They just waste fuel and breathable oxygen.

[AngryRB]

So are you saying 30seconds of driving easy is enough to cool a turbo down before switching it off?? I usually give bout 3 or 4minutes if its been flogged.

[The Mafia]

so you're saying that you can't drive steady 3 or 4 mins on the way home? Do you flog it up your street or something?

And yes, 30 seconds to a minute is more than enough.

[paulr33]

yeah 30 seconds is plenty

all the turbo timer does is keep the engine going which keeps the oil and water lines flowing

the oil is to cool the bearings to prevent cooking

its more crucial with non ball bearing units, so the oem unit is fine with instant shutoff

the bearing core wont drop much with 3 minutes of idle

the exhaust housing would still be sub 300/400+ deg anyway

[MBS206]

I believe there was some testing done showing after a minute the the turbo core temp rises again or something and can start to cause issues.

Get the turbo time properly disconnected, and remove it.

[R31Nismoid]

I agree about removing he timer etc, nothing but a headache.

However if it is not fixed, it very much sounds like a CAS problem. They can play up over time with heat, and by stopping its cooling down and then repeating etc.

[AngryRB]

Yeah i guess your right, says so on the Garrett website,

All Garrett turbochargers must pass a heat soak test and the introduction of water-cooling has virtually eliminated the need for a cool down procedure. Garrett is one of the few turbocharger manufactures that subjects their turbos to several OE qualification tests. When you buy a Garrett turbo you can be sure it's a reliable one!

Somthing reassuring about giving it a few minutes though

[89CAL]

Ive seen a graph with times it takes the turbo to cool after boosting and for a ball bearing it's not much at all. 10 seconds is more then enough really.

Bush bearing turbos are where you need to give a cool down period.

I have mine set on 20 seconds. But manually shut it off when I turn off the car anyway. Leave it going for a bit longer after a highway drive but that's just for peace of mind that the whole engine has circulated some fluids and everything is normal when shutting down. This probably isn't really necessary but as I said it's just a peace of mind thing

Depending on how your turbo timer is wired in that could be the problem, If your seeing the power to the unit flicker or switch off then back on id check it out

Otherwise as people have said, try and borrow a known working CAS and give that a shot