911uk

Random 'hiccup' when accelerating

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YOUR RESEARCHRandom 'hiccup' when accelerating

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Clean maf, had an atf

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Unsuccessful attempts: 1
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Performed · outcome unconfirmed · Original poster
So far i've cleaned the MAF, had an ATF change, showing no fault codes as read by 3 separate parties and 2 places have said not a clue.
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Random 'hiccup' when accelerating

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Leading evidence: 'Clean maf, had an atf' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean maf, had an atf' (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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Set off or i might be doing 50/60mph

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Suggestion · Original poster
It might happen just after i've set off or I might be doing 50/60mph.
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Random 'hiccup' when accelerating

Frequently discussed actions (2)

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Clean maf, had an atf

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed · Original poster
So far i've cleaned the MAF, had an ATF change, showing no fault codes as read by 3 separate parties and 2 places have said not a clue.
Original post Read captured discussion
Random 'hiccup' when accelerating

Set off or i might be doing 50/60mph

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 · Original poster
It might happen just after i've set off or I might be doing 50/60mph.
Original post Read captured discussion
Random 'hiccup' when accelerating

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3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

911uk: 1 discussions

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Generation: 20261027T173940Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a very random and intermittent issue with my 996 C4 Tip that i'm hoping anyone might be able to help me with. Every now and then I apply the throttle and it's like someone suddenly turned the tap off on the throttle between me/the pedal and the engine but it always seems to be when i'm accelerating. The revs don't die off but they just don't go up anymore either. At first I thought it was a slipping gearbox but have since been advised gearbox is all ok and it isn't in a particular gear either or RPM. It might happen just after i've set off or I might be doing 50/60mph. It only lasts a second and nearly every time once it cuts back in the D on the dash flashes (but only D not 4 as well). It's like the car hasn't caught up with the amount of throttle being applied. As some further investigating with a live read out via a bluetooth obd reader monitoring the throttle usage vs MAF for example the graphs always show that the throttle goes first before anything else. Leading me to think this may be the egas pedal, throttle body or ecu. So far i've cleaned the MAF, had an ATF change, showing no fault codes as read by 3 separate parties and 2 places have said not a clue. Am stumped! But some days it won't do it at all and drives perfect, so odd. If anyone has any ideas or thoughts gladly welcomed.

POST 2Original post

Does it happen at roughly the same revs ballpark every time or could be anytime when accelerating ?

POST 3 / ORIGINAL POSTEROriginal post

I'd probably say in a bracket wise somewhere between 2,500 and 4,000 would be where it happens mostly. But i've had it happen 'on the charge' at 5,000 as well. :dont know:

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