Rennlist

Power Loss guesses?

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHPower Loss guesses?

Leading reported evidence

Run ok

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
Back on and it ran OK again.
Original post Read captured discussion
Power Loss guesses?

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Leading evidence: 'Run ok' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run ok' (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 · 7 captured posts examined · 0 partial discussions

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Run poorly

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
ran poorly.
Original post Read captured discussion
Power Loss guesses?

Frequently discussed actions (2)

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

Run ok

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
Back on and it ran OK again.
Original post Read captured discussion
Power Loss guesses?

Run poorly

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
ran poorly.
Original post Read captured discussion
Power Loss guesses?

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.

7 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: 20261027T073501Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Had my '01 996 C2 at the track this weekend and experienced a growing power loss. I'm taking suggestions. No prize money though. 68K miles. 1) Initially full throttle had a flat spot in power starting around 6400 to 6700. Then OK up to redline. 2) My check engine light has been on for a year. O2 sensor. Never blinking. 3) Power started falling off more dramatically. Can barely pull a Boxster or Mini on the the straight. After a few seconds of pull, CEL starts blinking. No engine stumbling, just low on power. Get to the next straight and CEL is not blinking again. Same deal after a few seconds of pull. 4) Time to quit. Drove car home w/ no issues. Had it checked today and a bunch of O2 codes and heater issues as expected but had bunch of #6 cylinder misfires. Mechanic said the blinking CEL is the misfire causing possible damage to the cats. He disabled the #6 injector and ran poorly. Back on and it ran OK again. He suggested we start w/ the coil packs. So that's the facts. We'll see...

POST 2Original post

Coil packs..

POST 3Original post

coils and plugs.

POST 4Original post

Coils, Plugs, or stuck lifter.

POST 5Original post

What code is the CEL throwing. You said O2 sensor, but can you be a little more specific? It could be anything from the above suggestions to a plugged cat.

POST 6Original post

Symptoms of a plugged cat.

POST 7Original post

plugged up cats will cause loss up hp but it does take very clogged up cats.

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