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YOUR RESEARCH996 Traction Control?
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Use brake pedal
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Suggestion
No matter how skilled you are as a driver, you aren't going to be able to brake a single wheel using the brake pedal....
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But since it uses existing systems on the car, it would be worth checking to see what the differences really are.
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I just recently acquired a 2004 996 C2 and I know it does not have PSM but was wondering if it has any type of traction control. I don't think it does based on how it drives but I can't seem to find the answer when searching.
Thanks,
Dan
(My IMS bearing is fine so don't bother with that joke!)
Well no I am not positive... I just know there is no PSM button in the car. Guess that's why I am asking. This is my first 911 (owned every 944 you can think of including track cars, one of the original 944-spec car, past life) and this thing drives like it is stuck to the road with glue. I got the back end to slide once in first gear full throttle in a corner which makes me think it does not have traction control/PSM but again not sure... My 03 Merc and 08 Jeep both have traction control but then again my 04 996 can't play an MP3 so go figure
Pretty sure it was an option, not standard, on 2004 C2's. It shows as an option on my 2004 C2 under hood sticker, dealer option printout, and 2004 order guide.
IIRC, only all-wheel-drive 996's (C4, C4S, Turbo) came standard with PSM.
Yes, if you have PSM, you should have a PSM button as well as option 476 listed on your underhood sticker.
[QUOTE=dwebb944t;10163825]I just recently acquired a 2004 996 C2 and I know it does not have PSM but was wondering if it has any type of traction control. I don't think it does based on how it drives but I can't seem to find the answer when searching.
Thanks,
Dan
Traction control option was discontinued when PSM was introduced to replace it in 2000 or 2001.
$1250 isn't very much (for Porsche). So, I would guess they didn't do much to add it to the car. I wonder what it would take to activate it on your car if you want it? I've never seen a write up on it (more talk about deactvating it). But since it uses existing systems on the car, it would be worth checking to see what the differences really are.
No. Porsche discontinued the TC option on the 996 with the introduction of PSM.
If your car does not have PSM, it does not have TC. Additionally, both TC and PSM included a button of the dash to defeat (or temporarily defeat in the case of PSM) the system. If you don't have a PSM or TC button you do not have the system (at least factory installed).
Hmmm... Same buttons I have been using! Thanks guys for helping me understand my car rocks and my driving skills are superior! I don't need no stinken traction control!
They are very different...
Electronic traction control (ETC) is pretty basic. It is designed to emulate a limited slip differential and provide balanced torque between the two rear wheels, as well as prevent both rear wheels completely spinning by reducing power. ETC operates on rear wheels only, which is probably why stability management (PSM) came standard on the all wheel drive models...
An oversimplified description of how electronic traction control works:
- Monitor rear wheel ABS sensor to detect single spinning wheel.
- - If single wheel is spinning, apply braking force to spinning wheel.
- - - This diverts torque to non-spinning wheel, acting like an electronic limited slip.
- Monitor rear wheel ABS sensors to detect BOTH wheels spinning
- - Electronically reduce power given to rear axle
- - - This hopefully reduces both wheels spinning. If you are on a super slick surface and uphill, it can result in simply no forward motion...
Stability management, on the other hand, does the above plus can correct for severe over or understeer, helping to prevent or recover from spins. It uses a yaw sensor (rotational force), the ABS wheel speed sensors, ECU sensor, brake sensor etc. and can apply brake pressure any wheel, even the front wheels, individually. For example, if it thinks you are entering into a severe oversteer spin, it might apply brake force to the outer front wheel as well as gently reduce power.
No matter how skilled you are as a driver, you aren't going to be able to brake a single wheel using the brake pedal.... Skill might help prevent you from getting into a snap oversteer situation, but PSM will exceed any drivers skill in recovering from it once it is happening. The trick is for the computers to allow a bit of slide and yaw before interceding so it still drives like a sports car, and from all reports, PSM seems to rarely 'intrude' on the driver experience.
for those of us who don't have PSM, can this be retrofit? And, if so, how much of a hassle (time, $$, etc.)? Or is the idea of retrofitting PSM just wishful thinking?
Chicken! I hope you are kidding, if not you should at the very least go to a local auto cross event and learn to drive car with your feet and hands sans the nanny!
Hi, all. Just wondering if anyone knows if ^^^ is possible? I've done some searching here as well as other sites, with no luck. Not sure if I really need it, but it'd be nice to know whether it's feasible or not. Thanks, Greg.
Recently acquired 2003 996 C2 coupe. 6spd. Red)))
Possible, perhaps, but just barely.
Maybe if you had a salvage car with PCM you maybe could harvest all the parts from it, but that would still leave you with the extremely difficult job of trying to get all the software loaded and playing nicely with your existing systems. that would additionally require lots of knowledge as well as access to Porsche programming tools and correct software.
Not even
remotely
practical.
I have to say is all PCM does is ruin a perfect rear end slide. You are thinking "I got it, I got, it" and all of a sudden boom the car jerks like you just suffered from a spasm mid slide.
Turn it off have some fun playing in he rain
I'm looking to add the PSM button option to a 996...is $1,250 how much Porsche was charging to include this "option" on these vehicles? Local shops are saying $10k to add
