Skyline Stop Running :(

[3LGODZILA]

Has anyone thought it maybe has popped a hose off?

yeah thats wat i was thinking.

i read on here that if it pops a hose off u can unplug the afm so it goes into limp mode and the car will actually idle. any1 else heard of that or is it bs?

[JonnoHR31]

yes it should idle and run (although rough) upto 2000rpm

[ClutchBurndout-:(]

the car should run really roughly without the afm connected

aka limp mode

[5ky-lin3]

ok guys, Had another play with it just then..

I put the stock BOV back on and check everywhere I could for any air/vacuum leaks but couldn't find anywhere I could possibly imagine one occurring..

After I reset the ECU by disconnecting the battery again (still not sure how I can tell if this works?) and started the car it did the same thing.

Originally it appears to idle fine until a few small pumps on the accelerator (of which it struggles to spool and revs very roughly) then it has trouble idling again??? after reving it a bit it then also starts to pump out black smoke again and shutters. I had a look in the bay while it was idling also and you can notice how much it shutters by looking at it (for some reason it appeared to me to be the turbo that was causing it). So I still think its the turbo that has shat itself but still hope ive missed something????

Does anyone know any good mechanics in the Geelong/Warrnambool area that actually knows what they are looking/talking at/about that may be able to solve my problem???

Cheers,

Dallas

[thommo]

black smoke is generally way too much fuel not dead turbo, another vote here for a popped hose or vaccuum leak. get someone who knows what they're looking at to check your hoses and pipes.

if you're around geelong, a workshop i've had good experience with for basic mech stuff is Dalton Auto-

http://www.daltonautomotive.com/

good luck

[5ky-lin3]

Hey guys,

Just an update. I've booked my car into a decent mechanic finally to fix whatever problem I have (suspected vacuum leak I can not find). But just wondering what does it mean when I disconnect the AFM? I disconnected it and the idle started to change then stalled seconds later?

Cheer. Hopefully she'll be up and going soon

[Rolls]

lol disconnecting the AFM will always mean it will run like absolute ass and stall

[mosquitocoils]

Lol......... I'm curious what happened with this story?

[75coupe]

me too, update us...

[5ky-lin3]

In the shop as we speak... Been told it was just a bad exhaust leak and all my gaskets had been burnt out and it was getting confused or something.. getting the new tune and all fixed up by start of next week, will let u all know what the solution was

[nsdq]

I'm having a slightly similar problem except my car is pretty much stock, apart from cat-back. My revs start to fluctuate between 100 - 1500 rpm in idle, but only after a bit of driving (when car is warm). If I try to drive when this problem kicks in, I can feel the car pull back timing hard which means no power from the engine.

I've tested for vacuum leaks and cleaned AFM but still problem exists. Going to clean AAC valve this wkend but i'll be waiting to hear what was wrong with your line once it gets out of the shop.

[75coupe]

was the exhaust leak at teh manifold, turbo, dump or lower????

I wouldnt have thought an exhaust leak would do this..???

[STATUS]

In the shop as we speak... Been told it was just a bad exhaust leak and all my gaskets had been burnt out and it was getting confused or something.. getting the new tune and all fixed up by start of next week, will let u all know what the solution was

be aware there is nothing to tune on the std ecu... so dont pay for one. A tune on a std ecu is a reset... ie removed battery terminals for more than 30 secs... then doing the timing.

[DVS JEZ]

should only cost 700 for disconnecting the battery and setting the timing, any more is a rip...

which gaskets were stuffed?

[5ky-lin3]

Changed plans.. picking up on wednesday.. will let all know what the result is then..

As for the tune I actually purchased a PFC (as well as other bolt on parts) so it can all be done properly and actually worth while..

I also thought that an exhaust leak wouldnt cause this but thats what im currently being told. I believe the leak was from the manifold gasket but all the bolts on the exhaust had come loose apparently??

Will know alot more when I actually go to pick her up so will update then..

Cheers

[ClutchBurndout-:(]

i doubt all these problems would be caused because of an exhaust leak...

[Rolls]

i doubt all these problems would be caused because of an exhaust leak...

yeah you could pull the whole exhaust off and all that would happen is it would run a bit more boost and run a bit richer and more retarded timing.

[5ky-lin3]

Got her back wednesday

Final verdict that it was the terrible exhaust leak from the manifold gasket that was the major cause. Had this all fixed up with a new dump and front pipe inserted aswell.

Also had, full tune, FMIC, BOV, manual boost controller, repaired turbo water hose, heat wrapped, flush n bleed of coolant system also done..

After the tune she puts out 222.6rwkw (on 14psi) which I very happy with as I was only hoping to break 200.. runs very smooth now and has a lot more aggression

[Rolls]

should be able to run 18psi and make 240+ unless you have stock injectors holding you back

Edited November 26, 2010 by Rolls

[DVS JEZ]

Intake temps are a bit high.

I still dont believe the exhaust leak caused that issue. Prob just the tune for power fc