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CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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

Discussion summary

YOUR RESEARCHCEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Check gas cap and made sure it was tight

Performed · outcome unconfirmed

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 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

I checked the gas cap and made sure it was tight, so that's one variable checked off the list.

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Check gas cap and made sure it was tight' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check gas cap and made sure it was tight' (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.

Read captured replies

1 matching discussions · 7 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check off the list

Performed · outcome unconfirmed

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 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

I checked the gas cap and made sure it was tight, so that's one variable checked off the list.

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Recommend buying an actron scanner

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

Recommend buying an Actron scanner for $40, most auto stores, and you will have one for when these thing happen….you can also reset the CEL with these inexpensive scanners….

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace 4 sensors

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 immediately planned to replace all 4 sensors...

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reset cel

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

Recommend buying an Actron scanner for $40, most auto stores, and you will have one for when these thing happen….you can also reset the CEL with these inexpensive scanners….

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (5)

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

Check gas cap and made sure it was tight

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

I checked the gas cap and made sure it was tight, so that's one variable checked off the list.

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Check off the list

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

I checked the gas cap and made sure it was tight, so that's one variable checked off the list.

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Recommend buying an actron scanner

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

Recommend buying an Actron scanner for $40, most auto stores, and you will have one for when these thing happen….you can also reset the CEL with these inexpensive scanners….

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace 4 sensors

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 immediately planned to replace all 4 sensors...

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reset cel

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

Recommend buying an Actron scanner for $40, most auto stores, and you will have one for when these thing happen….you can also reset the CEL with these inexpensive scanners….

CEL came on last night :( - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

  • 986Forum: 1 discussions

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

1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link

Later on it turns out that my passenger side O2 sensor was bad, and replacing it solved one of the issues that was causing the CEL (the heating was bad on that sensor)

No unique explicit quoted action; no causal link assigned

Generation: 20261026T203514Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

So, I am driving through Manhattan last night, my 2003 tiptronic base box hit 74,250 and my CEL came on . Don't know what it is, I'll get my local autozone to diag it. Problem is I won't be able to get to it as I am going to Oklahoma for a week. Car drove fine on the way home, I took it easy. Hopefully it's just some stupid sensor somewhere. I checked the gas cap and made sure it was tight, so that's one variable checked off the list.

POST 3Original post

"Very small leak detected" or "cat under performance" and such are annoying possibilities. Usually just a gas cap or oxy sensor.

POST 4Original post

If the light is just on, then safe to drive. If blinking, then stop and see what it is. Mine has blinked one time, it was misfires because I had overfilled the oil and it overwhelmed the AOS and sent some oil back through the intake. Once I let some oil out it was all fine. I remember my first CEL, I had the car only a week or so, and I had just filled up with gas at Costco. On the way home, idling at a light, it came out. My heart sank. I felt sure that the car was about to implode. I got the code read and it was O2 value something or other. I immediately planned to replace all 4 sensors... $$$. Luckily I came to my senses, as it is rarely the sensors themselves; they are just what indicate the fault condition. Later on it turns out that my passenger side O2 sensor was bad, and replacing it solved one of the issues that was causing the CEL (the heating was bad on that sensor) Here's a good article on sensors, with part numbers (I got mine from amazon) but keep in mind it usually is not the sensors. https://sites.google.com/site/mikefocke2/oxygensensors Here's a good article on CEL: https://sites.google.com/site/mikefocke2/acheckenginelight%28cel%29 Good luck. Once you get the code read, come back to the forum and search on it, and you will most likely find tons of info. Steve

POST 5 / ORIGINAL POSTEROriginal post

Thanks for the support all. Yes my heart sank as well. The CEL was steady freddy so looks like its safe to drive. I won't be touching it until I get back anyway...

POST 6Original post

Recommend buying an Actron scanner for $40, most auto stores, and you will have one for when these thing happen….you can also reset the CEL with these inexpensive scanners….

POST 7Original post

Try putting the code you get into the box on right side.. Porsche P1123 OBD/DLC Error Code -

This is a source reference. Confirm exact model applicability in the original material.