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YOUR RESEARCHCheck engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Replace limits of the error codes coming

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Suggestion
I had to have my fuel chip modified once again to change the limits of the error codes coming on.
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Check engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Replace limits of the error codes coming' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace limits of the error codes coming' (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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Replace oxygen sensors

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Suggestion
I had the check engine light come on myself and told me to replace my o2 sensors.
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Check engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Run into this problem

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Suggestion
Due to modifications I had performed it was obvious I was going to continue to run into this problem.
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Check engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use of a dyno

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Suggestion
And at that point have a porsche specialist fix whatever problems that might become know during the use of a Dyno.
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Check engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Frequently discussed actions (4)

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Replace limits of the error codes coming

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.

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Suggestion
I had to have my fuel chip modified once again to change the limits of the error codes coming on.
Original post Read captured discussion
Check engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace oxygen sensors

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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.

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Suggestion
I had the check engine light come on myself and told me to replace my o2 sensors.
Original post Read captured discussion
Check engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Run into this problem

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
Due to modifications I had performed it was obvious I was going to continue to run into this problem.
Original post Read captured discussion
Check engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use of a dyno

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
And at that point have a porsche specialist fix whatever problems that might become know during the use of a Dyno.
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Check engine light - HELP - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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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.

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

986Forum: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

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Generation: 20261026T155324Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Greetings all, I've been having a problem with the check engine light coming on. Over all I want to narrow the problem down. The check engine light on my Boxster came on last year and I took it to the dealer, the dealer told me that I had 2 old codes, both for o2 sensors. The dealer then told me if it happens again its either a vacuum leak or that I need all new o2 sensors. Well it happened again about 3 months later, so I bought an obd2 reader and read the codes. Then I erased the codes and had no problem until today, it came on, another 3 months later it flagged the o2 sensors, codes:P1124, P1126 and told me Misfire, Emission Related, Signal Implausible Cyl. 1-6, codes: P1316, P1317, P1319 . My question to all, wouldn't o2 sensors flag me right a way and not in 3 month intervals? And if it isn't my o2 sensors, could it be anything else than a vacuum leak? Help!!! Thanks, MC

POST 2Original post

Generally I think the codes are pretty accurate, but not always. I had the check engine light come on myself and told me to replace my o2 sensors. I did it and the check engine light came back off within about 100 miles of installing then saying the same problem with the new sensors.I had my car Dyno'd and the results came back saying my fuel/air mixture was off. Due to modifications I had performed it was obvious I was going to continue to run into this problem. I had to have my fuel chip modified once again to change the limits of the error codes coming on. I would think utlimatly to fix your troubles you might consider putting your car on a Dyno to see how it is truly responding. And at that point have a porsche specialist fix whatever problems that might become know during the use of a Dyno. This will give you a much better reading then an Odb2 code reader.

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