12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHTraction control vs PSM, e-gas
Leading reported evidence
Replace on tiptronic equipped models
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
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Suggestion
If the system senses that the vehicle is deviating from its proper path while accelerating or coasting — by oversteering or understeering — it takes corrective action by selective braking, throttle change, and gear change on Tiptronic equipped models.
Leading evidence: 'Replace on tiptronic equipped models' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace on tiptronic equipped models' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
PSM uses a number of sensors that provide input to a high-tech control unit.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Replace on tiptronic equipped models
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
If the system senses that the vehicle is deviating from its proper path while accelerating or coasting — by oversteering or understeering — it takes corrective action by selective braking, throttle change, and gear change on Tiptronic equipped models.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
12 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I just purchased a 99 996 which was manufactured July 99...when did e-gas become standard equip? My car has traction control with ABD...what is the difference between traction control with ABD and PSM?
Drive-by-wire was standard on the '99 Carrera 4 and became standard on all 2WD Carrera's and Boxster's as of MY '00. The following explains TC, ABD and PSM.
From Porsche:
TRACTION CONTROL Generic term for electronic controls that reduce drive wheel slippage, intended especially for low-traction conditions. Taking advantage of the sophisticated software already employed by ABS systems, any wheel can be slowed by selective brake application in order to help the retain traction. Other systems automatically modulate the throttle. The more sophisticated traction control systems utilize both capabilities.
ABD (Automatic Brake Differential) A type of traction assistance which applies the brakes to a slipping wheel, transferring torque to the opposite wheel. ABD systems generally operate at lower vehicle speeds.
Porsche Stability Management (PSM) is designed to stabilize the car when driver loss of control is impending. PSM uses a number of sensors that provide input to a high-tech control unit. The unit continuously checks and compares input from the sensors to determine the vehicle's direction and movement and how it differs from the direction chosen by the driver based on steering-wheel input. If the system senses that the vehicle is deviating from its proper path while accelerating or coasting — by oversteering or understeering — it takes corrective action by selective braking, throttle change, and gear change on Tiptronic equipped models.
You should know that on the '99's traction control was an option not standard equipment. I don't have the option code handy for that year, but if the car has it it will be noted on the warranty book and on the inside of the front hood. Also, there will be a black switch with the letters "TC" on the dash since traction control can be deactivated.
Bloke, I'm not sure traction control is really neccessary. The one time I had to drive my C2 after a couple of inches of snow I was amazed by the traction provided by hanging the engine off the back bumper. Even with P-Zeros I had no problems getting moving. Stopping was a bit more exciting though.
This is a source reference. Confirm exact model applicability in the original material.
