Pelican Parts

P0150 Codes

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHP0150 Codes

Leading reported evidence

Install of these yesterday and everything was wonderful

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
I installed all of these yesterday and everything was wonderful for about 40 miles then the CEL light came on again.
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P0150 Codes

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Leading evidence: 'Install of these yesterday and everything was wonderful' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install of these yesterday and everything was wonderful' (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 · 3 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace maf and all of the o2 sensors

Suggestion or failed attempt

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 · Original poster
After reading all the wonderful information here I decided to replace the MAF and all of the O2 sensors.
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P0150 Codes

Run very smoothly

Suggestion or failed attempt

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 · Original poster
NOTE: the car has always run very smoothly with no idle problems.
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P0150 Codes

Frequently discussed actions (3)

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

Install of these yesterday and everything was wonderful

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 installed all of these yesterday and everything was wonderful for about 40 miles then the CEL light came on again.
Original post Read captured discussion
P0150 Codes

Replace maf and all of the o2 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 · Original poster
After reading all the wonderful information here I decided to replace the MAF and all of the O2 sensors.
Original post Read captured discussion
P0150 Codes

Run very smoothly

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 · Original poster
NOTE: the car has always run very smoothly with no idle problems.
Original post Read captured discussion
P0150 Codes

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.

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

Pelican Parts: 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

To make a short story long, I have a 1999 996 C4 and it started throwing P1130 codes every few hundred miles. After reading all the wonderful information here I decided to replace the MAF and all of the O2 sensors. I ordered these up through Pelican parts as they were the OEM brand. I installed all of these yesterday and everything was wonderful for about 40 miles then the CEL light came on again. At least this time it was a different code. P0150: Porsche fault code 18 - O2 sensor ahead of cat. conv. Cylinder (4-6) So does this mean that one of the new O2 sensors that I got is bad or do I need to look elsewhere ? NOTE: the car has always run very smoothly with no idle problems. I have cleared the fault and will drive it and try it again. If it continues to throw the code I will put one of the old ahead of cat sensors back in and see it that works. That would prove the new sensor is bad I assume. Any information or advice would be greatly appreciated. Marc

POST 2Original post

Before you go swapping sensors unnecessarily again (your first code was for an overly rich mixture condition, not the sensors), the most common cause for P0150 is a wiring problem (short to ground, low voltage caused by a loose connector).

POST 3 / ORIGINAL POSTEROriginal post

Thanks, I will investigate further.

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