Cayman PSM will not fully disengage! Help!

[LuckyNumber7]

Hi,

I'm trying to fully turn the PSM off by pressing the button (cayman r manual with chrono) but every time I try and get the car moving around (read drift) it cuts back in and the yellow light flashes in the instruments.

Am I doing something wrong?!? It's really annoying me!!!

I've seem multiple vids on evo and autocar etc of caymans drifting so it must be possible!

Cheers,

LN7

[Magic919]

Are you using the brakes?

[LuckyNumber7]

Nope, only tried to start the slide on power.

[Magic919]

Ok. I take it you are in Sport Plus. Can't think why it would jump into nanny mode if you don't brake hard.

[LuckyNumber7]

That's what's confusing me, I know it says it can come back in if the abs cuts in but it hasn't.

[Far Cough]

You cannot fully disengage it I'm afraid. The system is different to the one fitted to the GT3 which will allow total switch off.

[LuckyNumber7]

I see, so Harris and Drifty journos must be doing something I'm not.

Thanks for the replies.

I'm very surprised though, it's a porsche, not a polo!

[Far Cough]

They may be pulling fuses possibly. I got fed up with mine interfering with fun.

[LuckyNumber7]

So, eventually after some fairly aggressive lift off and then throttle application I got it to slide quite nicely in a tight corner but couldn't get the nack consistently.
If anyone who can could explain the technique I'd appreciate it!

Cheers!

[Steve H]

If it's like the system on the E92 M3 the ESP gives you marks out of 10 and if you score below a 7 it intervenes even if switched off.

Practice makes……..

[mrdemon]

It's cuts back In I am afraid, it's not a drift king.

You can drift with less lock, it seems to not like a lot of lock and a lot of slip angle.

Keep the steering lock small and you can drift it.

But that's hard to do as a novice like me, it's easier to get the back out on the tighter bends at slower speed, but that gets it cutting back in.

[juansolo]

Short of cutting the power line to the box that senses what the car is doing (expect the car to complain quite a lot and you never to pass an MOT again), you can't fully disable it. There are no easy fuses to pull and no quick fixes.

Annoying isn't it. I would love someone to offer a remap service that when you press the button it actually disables the thing and doesn't light up that yellow light on the dash. Given that you can change the parameters of the stability control on the ECU (retro-fitting sport plus), I expect it's possible. Just no-one's ever done it.

Saying that, it will drift with it 'disabled'. Not sure how far it really lets you get away with it as I've never tried it excessively. But it doesn't interfere as heavily/abruptly as it does with it on.

Edited by juansolo on Sunday 17th August 19:05

[thegoose]

You could try disconnecting an ABS wheel speed sensor, and if that works then you could wire a switch in to disable it when required.

[mrdemon]

I have read in the past that if you bypass the YAW sensor you can do what you like but some say it might also make ABS not function, but on track that would be ok.

[Big E 118]

How do they turn it off for cars at the Silverstone PEC then? They're OK to drift and spin without any interference. They just push the PSM button to turn it off completely.

Those cars are sold on afterwards through the OPC's so must be something fairly simple, a map?

[mrdemon]

you can drift and spin up, it's only on tight turns at a speed etc where the YAW must say bks he is going to die and cut back in

I do track days and at Donnington it does not cut in

but it cuts in on just 1 corner at Bedford which is tight.

IT also cuts in on smaller roundabout if you try to power off them , but is ok on larger ones.

[dunc_sx]

This still the case for early Gen 1's? (Manual Cayman S)

[juansolo]

I think it's the case for everything that isn't a GT3/2 from the 997/987 onwards.

[MisterDJ]

It will certainly fully disengage on a 987 Boxster (gen I). As soon as you press the button to turn it off there is a beep, and the PCM light on the dashboard is continuously on.

[Far Cough]

MisterDJ said:

It will certainly fully disengage on a 987 Boxster (gen I). As soon as you press the button to turn it off there is a beep, and the PCM light on the dashboard is continuously on.

Thats normal and it might "look" like its fully off , but drive it like you stole it and you will see the little light blinking away.

I wonder if at PEC the low friction surface has something to do with it or the low speed that you drive at.