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So on Saturday I dyno'd my car. I got the usual errors; PSM Failure and ABS Failure. No big deal, the car gets confused with the front wheels stationary while the rear wheels are going 90+mph. These errors go away after driving a few feet. But I also got a CEL. I wasn't overly concerned since I was told this could happen, but I would have to take it in to have it cleared.
Well I was driving today, made several stops and each time when I turned the car on I got the CEL. I made an appointment with my dealer to get it cleared on Monday morning, so this annoyance will quickly be over (a reason in itself to get SNAP-FLASH; I can clear the codes myself).
Well after my last stop before I headed home, I accidentally stalled my car .
Well when I restarted my car the CEL light was gone and didn't come back. What's up with that? Not that I'm complaining, but what could the stall had done to clear this code? Anyone else have something like this happen?
Should I keep my appointment tomorrow anyway and take my CS in?
PSM - Porsche Stability Management
While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility.
I'd keep the appointment, I've heard the car stores old CEL codes for like a month. Then again the service writer at All Pro told me that... and they're not very credible.
Actually they are correct on that one, the error code is still in the ECU fault memory until cleared by the PIWIS. If it is the cat code (like 431) it can go away if the car believes the problem has gone away, but again the code will still be stored, so keep your appointment and see what it is to see if it is serious or not. Likely not, but better to be safe than sorry...
PIWIS - Porsche Integrated Workshop Information System
Porsche Integrated Workshop Information System (diagnostic tester) This device is used to test various aspects of your Cayman's computer and electronic systems. These units cost over $12,000 to purchase and are connected to Porsche via a wireless connection at the dealership so that your Cayman's information can be sent to Porsche whenever your car is attached for diagnosis. The PIWIS device has the ability to control almost any system in your car provided that your car has the appropriate control units and programming installed. Your dealership may not perform some activities such as disabling safety equipment.
This may be too late, but just take it back to Sam at ProTechnik
(that's where the dyno event was for those who don't know). He
will clear it for you.
I had the same thing. The other Scott (Tiptoe) did as well.
The weird thing after that was that although the radio played
fine on the way home, I went to play a CD while getting ready
to wash it and it wouldn't play. It displayed "PROTECTED" on
the readout. So I inserted the key, switched the ignition on and
it worked. Turned it off, removed the key and now it works fine.
How's that for weirdness?
Best,
- Mark
PS: So far, all else is fine.
__________________
Rare Cayman Cabriolet S in Meteor Gray,
Cocoa top, Cocoa full leather interior, Sport
seats and steering wheel, PCCBs, PSE,
real Cayman 18 inch wheels and a delightful
3.4L engine with a new set of lifters which
seems to have solved the ticking noise.
I thought about taking it back to Sam on Saturday, but my 2 year old needed to get home. I just went ahead and kept my appointment and took it in this morning. I will let the Porsche Techs clear out the codes and verify that the CEL is nothing as I suspect. I knew something like this might happen since I was told before hand. So it wasn't a big deal. It's more distracting than anything. I mean, you want to look down at your dash when you see it light up, distracting.
I think that code comes from washing your car too much....
That's why so many folks get that code!!!!
Actually, in many cars, if you drive a certain distance after the code is registered and the computer sensed no repeat problem, it will clear the code from being displayed. Still in memory though.
I think that code comes from washing your car too much....
That's why so many folks get that code!!!!
Actually, in many cars, if you drive a certain distance after the code is registered and the computer sensed no repeat problem, it will clear the code from being displayed. Still in memory though.
HAHAHAHAHA... Then I guess you will never throw a code
Lately with all the rain, I think I spend more time washing it than
driving it!
And, Scott, you are correct -- that light is very distracting.
Right after the dyno runs, I got ABS and PSE warnings and
these went away after exceeding 8 mph.
Then the dreaded "Warning! Check Engine. Take to Nearest Very Expensive
Porsche Dealer for Service. Mach Schnell!" light came on.
I was grateful that they haven't integrated that warning into the audio
system! I can hear it now -- "Zhou must take zis car to ze Porsche
dealer now! Mach Schnell! If you do not take it immediately, I vill coss it
to blow out ze rear main seal and also lock up its oil poomp and zen blow
itzelf into little pieces. Schnell!"
Anyway, they haven't done that and the light has been reset and turned
off.
All seems fine.
Best,
- Mark
PSE - Porsche Sports Exhaust System
The acoustics of this dual-mode sports exhaust system are dependent on driving style, ranging from standard output during normal road driving to a more aggressive tone during performance use. Modes are selected using a button on the center console (or ‘Sport’ mode button on vehicles with optional Sport Chrono Package/Sport Chrono Package Plus).
Introduction planned for 04/2007. Some models may require additional components. For detailed information about this product, please contact your Porsche dealer.
Part no. 987 044 200 00
Click Here for the FAQ on the Porsche Sports Exhaust
__________________
Rare Cayman Cabriolet S in Meteor Gray,
Cocoa top, Cocoa full leather interior, Sport
seats and steering wheel, PCCBs, PSE,
real Cayman 18 inch wheels and a delightful
3.4L engine with a new set of lifters which
seems to have solved the ticking noise.
.
