Need Help

[newboost]

I have a r33 s2 (auto) I have a problem that is really giving me the shits.

problem is that when i put it in gear it drops in revs almost to the point where it stalls. this has only just started last week.

It idles good at around 800 to 900 rpm,

I have cleaned gthe AFM (and tried another one),cleaned the AAC, New plugs, Split fire coil pack which would be roughly 10 months old,replaced all the vacumm lines (thinking it was a leak in the lines), new fuel filter, auto was serviced 6 months ago and all new fluid was put in (levels are good)

I have been reading possible problems that it might have been, This is why i have cleaned and replaced all that i can think offf.

If any one might be able to shed any light on this it would help me out heaps

[ARTZ]

How olds ya engine..compression still good..

i doubt this is the problem but just an idea....

[newboost]

engine is the original one and has travelled 103k, i don't have a compression tester to give it a try.

[axe s]

I'd be starting to check Gaskets...

might be an inlet manifold gasket... when i had my cheap Chinese mani on it leaked air somewhere and had a similar problem...

[newboost]

to add to this i did have 2 boken studs when the problem started, I have since replaced all the studs and have put all new gaskets in, It has made no difference to the car at all.

[tridentt150v]

do you have a std bov?? and is it working??

Probably gearbox related though, dragging/friction when in gear.

[newboost]

it is a standard bov and seems to be working ok. I got a new gasket for it and sealed it with a bit of silicon to make sure there are not leaks around the base.

[R33_KRAZY]

i would say gearbox is in need of a service if it idles fine when in park or neutral.. standard tourque convertor probebly needs replacing or just a good oil and filtor change

[hypergear]

I had this problem before. Mine was a timing belt issue. It got lose and skiped 1 tooth.

[mosquitocoils]

Seeing as the car is right on 100,000k's, have you done your 100,000k service? Timing belt etc etc etc?

Just going by what hypergear said, could be related?

[newboost]

when the car clicked over 100k it was serviced, new timing belt (gates) & tensioners put in. Also to a further post tha auto has been fully serviced aswell. (new fliud and bands tightened)

[grippy]

I would be taking it back to the guy that did you 100k service and put it in his court. Obviously something he has done has contributed to this.

Possibly the timing belt was not tensioned correctly and after some kms the timing belt has stretched as they do and it may have jumped a tooth.

Does the car drive normally when you get it going??? Or does it just continue to die?

I'd definitely be taking it back.

[newboost]

Yes the car does drive normal

[Dorigecko]

take it back to the mechanic.

what's it like under load? noticed any lack of power?

what transmission fluid did he use?

[newboost]

little loss in power while under load and a full synthetic, not sure of what brand it was.

[Dorifta]

if ur problem is as described, I would say its ur torque converter and or one of the valves. take to auto trans place and get thrm to test drive and scan. They should do it on the spot if ur lucky