POST 1 / ORIGINAL POSTEROriginal post
Porsche Boxster 987 3.2 S 2005 When driving at a constant speed engine revs up slightly and drops back to normal and continues to do this ... anyone got any ideas ... Hope someone can help ...
PistonHeadsOriginal source
Porsche boxster 987 revving up in gears - Page 1 - Boxster/Cayman - PistonHeads UK
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6 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHPorsche boxster 987 revving up in gears - Page 1 - Boxster/Cayman - PistonHeads UK
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
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1 matching discussions · 6 captured posts examined · 1 partial discussions
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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.
6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
- PistonHeads: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
When driving at a constant speed engine revs up slightly and drops back to normal and continues to do this ...
No unique explicit quoted action; no causal link assigned
Generation: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
POST 2Original post
Clutch slipping possibly
POST 3 / ORIGINAL POSTEROriginal post
No ... Tiptronic ... It not slipping it's something to do with the engine possibly a sensor ... goes up say from 2500 to 2600 or whatever steady speed you doing ...
POST 4Original post
Best guess would be tank vent fault or air leak but to be honest i could probably list a lot of possible items , need to see if any fault codes are listed and actual values for fuel trim really.
POST 5 / ORIGINAL POSTEROriginal post
Thanks very much ... For the info ... Much appreciated ...
POST 6Original post
Only a couple of things have affected engine speed, caused it to go and and down with no pedal input from me, with my 2002 Boxster (5-speed). AOS failing and a bad VarioCam solenoid/actuator.
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