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Throttle surge normal?

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9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHThrottle surge normal?

Reported or suspected cause

throttle body

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
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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 report identifying a cause
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.

Reported cause

Turned out to be the throttle body that had failed (e-gas).

Throttle surge normal?
Frequently discussed work

Clean maf etc

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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

I tried cleaning the MAF etc.

Throttle surge normal?
Read full discussion summary

Leading evidence: 'throttle body' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'throttle body' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Clean maf etc' (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.

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1 matching discussions · 9 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Clean maf etc

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

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

I tried cleaning the MAF etc.

Throttle surge normal?
Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Clean maf etc

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

I tried cleaning the MAF etc.

Throttle surge normal?
Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

throttle body

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
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.

Reported cause

Turned out to be the throttle body that had failed (e-gas).

Throttle surge normal?
Coverage and how to read this overview

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.

9 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: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I was out last night in my friends 2003 996 and noticed a delay in throttle when you blip the throttle for down shifts and also under constant pedal position there was a surge in power at about 3200 rpm. Is this normal? I've driven other 996s and didn't remember them doing that.

POST 2Original post

Could be the MAF sensor is starting to go bad.

POST 3Original post

"also under constant pedal position there was a surge in power at about 3200 rpm." ~3000 surge normal variocam operation.

POST 4Original post

Sounds like variocam to me too, but it should be fairly smooth power delivery, certainly a little noticeable though at WOT especially on the higher gears at higher speeds. Could be e-gas playing tricks but doubt it ! Cable operated is moooo better. Love my dual row, 5 chains, and cable throttle :-) Also dirty T/B, MAF.

POST 5Original post

Could even be the diff... old fluid. But variocam is distinct around those rpm's.

POST 6Original post

I get a very noticeable surge at around 3000-3200 RPMs in just about every gear. Along with the surge you can even hear a difference in the exhaust note. I thought it was just the variocam+.

POST 8Original post

The surge from VarioCamPlus should be as you move through the rpm range rather than at a constant pedal. I was getting this surging on my 3.4 for a long time. It was mostly when the engine had not fully warmed up and it would surge as I cruised around at a constant pedal position. I tried cleaning the MAF etc. and still had the surge. Then one day the throttle quit working almost completely. It would hardly rev the engine and under load would not go above 2,000 rpm. Turned out to be the throttle body that had failed (e-gas). I replaced it and the problem has never returned so it would appear that it was a failing throttle body that was causing the surging. By the way the best price I found for a throttle body was at KOPerformance.com.

POST 9 / ORIGINAL POSTEROriginal post

Thanks guys....his CPO is just about to end and wanted to get all issues looked at.

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