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Planet-9

possible 997/987 ECU recall...

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Original source
6 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHpossible 997/987 ECU recall...

Leading reported evidence

Replace ecu

Suggestion or failed attempt

No successful repair reported for this finding.

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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 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

It seems they might have to do a software upgrade or replace the ECU.

possible 997/987 ECU recall...
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Leading evidence: 'Replace ecu' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace ecu' (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 · 6 captured posts examined · 1 partial discussions

Compare 1 other evidence results

Reset by fuse removal)

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

(reset by fuse removal).

possible 997/987 ECU recall...
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.

Replace ecu

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

It seems they might have to do a software upgrade or replace the ECU.

possible 997/987 ECU recall...

Reset by fuse removal)

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

(reset by fuse removal).

possible 997/987 ECU recall...
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.

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

  • Planet-9: 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: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I found out from a good source that there is a defect on several ECUs 997/987 many vehicles are effected. Apparently Porsche of America can't figure it out and one of Largest Porsche Dealers in the USA, from what I've heard has had many with this problem. I thought #1 was Champion followed by Jim Ellis. You will not get a CEL but a fault code P126 rich biast limit stuck which will not clear. There is no protocol/ procedures to repair it, PTECH (porsche technical support) has no solution yet. scan your cars to see if you have this code then contact your dealer. It seems they might have to do a software upgrade or replace the ECU.

POST 2Original post

Is there any way to tell prior to the CEL lighting up whether my car is one that qualifies for the fix? Is it VIN# related?

POST 3Original post

You wont get a CEL, you have to take it to the dealer and ask them to scan it for faults.

POST 4Original post

Add to that other random software issues: 1. Engine wont start for no reason for 10 mins. 2. Engine does some strange surging in first gear. 3. RPM hunting at (idle +100)RPM 4. ABS error and failure and part lockup of brakes. (self cleared after 1 hour) 5. Fuel Gage crashed and reading out by more than half a tank and stuck at empty. 6. Radio and audio system locks up. (reset by fuse removal). 7. Lights turn on/off inconsistently sometimes. 8. Oil level reading varies with temp and is inconsistant sometimes. Err, and this was with stock ECU software. Hello Porsche, anybody home? :crazy:

POST 5Original post

I like a good scare like anyone else but has anyone experienced this and, what does it mean to those of us that have flashed our cars with Softronic, Revo, etc.?

POST 6Original post

If it's a software upgrade, Scott will more than likely have the latest and greatest which would mean problem solved. If it's an ECU replacement, I'd flash back to the original map, have the dealership replace the ECU and, assuming Scott has the latest software, flash the new ECU with Scott's upgrade. I personally have not experienced any of the things mentioned in this thread but even if I did, I would not be too worried about it. -Moto

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