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911uk

Lift off shunt at low speed

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6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHLift off shunt at low speed

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Test with a piwis

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Performed · outcome unconfirmed

It's quite common for 996 owners to never even notice they have a failed one until it's actually tested with a PIWIS.

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Lift off shunt at low speed
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Leading evidence: 'Test with a piwis' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Test with a piwis' (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.

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Test with a piwis

No successful repair reported for this finding.

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Reported fixes
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Unsuccessful attempts
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Read evidence and context
Discussions that performed work without a confirmed outcome
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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.

Performed · outcome unconfirmed

It's quite common for 996 owners to never even notice they have a failed one until it's actually tested with a PIWIS.

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Lift off shunt at low speed
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6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • 911uk: 1 discussions

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Generation: 20261026T150451Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Weird one , and I might be worrying about nothing but I can hear/feel a slight shunt when I lift off at low revs /low speed. I had assumed engine mounts but I've just done them ( huge benefit to the gearchange btw) Anything to worry about - I've just gone over some of the alpine passes so that might have jiggled something

POST 3Original post

My shout would be gearbox mounts, I’ve got this, I tried putting the yellow powerflex mounts in to stop this, it did but car vibrated at speed, they where horrible, so had them removed, I’ve still got the issue but it’s very slight and doesn’t seem to be getting any worse.

POST 4Original post

Does it feel engine related? Hard to explain but as though there's an ignition fault or something. Mine used to do that and I'd had both new engine mounts and gearbox mount. You also felt it if you were driving with cruise control on and then knocked it off, you got got like an instant knock/judder. Turned out to be my bank1 variocam solenoid was faulty and stuck in the advanced position. Car ran fine and you wouldn't really notice, apart from that and a lumpy tickover when up at temp (and aircon switched off).

POST 5Original post

Nothing to do with the OP but I used to have a 981, and when a variocam solenoid failed on one bank, the car was borderline undriveable under 3000 rpm. Tricky to drive round since it was a PDK.

POST 6Original post

Variocam system on the newer cars is more complex than the 996. It's quite common for 996 owners to never even notice they have a failed one until it's actually tested with a PIWIS.

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