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Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHRouting of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Disconnect battery

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 finally got it out, replaced w/ new, and disconnected the battery for ~30 min to re-set the computer.
Original post Read captured discussion
Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Frequently discussed work

Check continuity

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
Also, anyone know the procedure for checking the continuity from the sensor socket to the ECU?
Original post Read captured discussion
Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Read full discussion summary

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

Compare 3 other evidence results

Replace w/ new

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
I finally got it out, replaced w/ new, and disconnected the battery for ~30 min to re-set the computer.
Original post Read captured discussion
Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Check continuity

Suggestion or failed attempt

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
Also, anyone know the procedure for checking the continuity from the sensor socket to the ECU?
Original post Read captured discussion
Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Set computer

Suggestion or failed attempt

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
I finally got it out, replaced w/ new, and disconnected the battery for ~30 min to re-set the computer.
Original post Read captured discussion
Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Frequently discussed actions (4)

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

Check continuity

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
Also, anyone know the procedure for checking the continuity from the sensor socket to the ECU?
Original post Read captured discussion
Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Disconnect battery

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 finally got it out, replaced w/ new, and disconnected the battery for ~30 min to re-set the computer.
Original post Read captured discussion
Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace w/ new

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 finally got it out, replaced w/ new, and disconnected the battery for ~30 min to re-set the computer.
Original post Read captured discussion
Routing of wires for O2 sensor - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Set computer

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
I finally got it out, replaced w/ new, and disconnected the battery for ~30 min to re-set the computer.
Original post Read captured discussion
Routing of wires for O2 sensor - 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.

1 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.

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

Generation: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Here's my problem: - 2000 Boxster, 2.7 L, Tiptronic, ~61K - just had 60K service done, also replacement of AOS due to failure (classic squeel) Less than a week after the service was done, CEL comes on. I have a Durametric scanner, so when I got home I check the code - P0140 (Bank 1 post-cat O2 sensor - no signal). I figured this was unrelated to the service. After reading Mike Focke's web page I desided this was something I could tackle myself, so I ordered set of of four replacement sensor (Bosch OEM, $100 each from Amazon.com). The bank 1 (passenger side) post-cat O2 sensor is an SOB to get at - very little room for leverage. I finally got it out, replaced w/ new, and disconnected the battery for ~30 min to re-set the computer. Next day on the way home from work, the CEL comes back on - same code P0140. I hooked up the scanner again to get the "live" readings from the sensor: voltage = constant at 0.45, resistance = 0. (For comparison, the Bank 2 post-cat sensor reads voltage varies around 0.7, resistance = 0.) If I unplug the sensor I get the same reading. Also tried plugging in the 2nd new post-cat sensor to bank 1 and get the same results. The only fault code that shows up is P0140. At this point I'm pretty sure the new sensors are OK (and maybe the old one too) but there is a problem with the wiring. I've checked the obvious - plug/receptical look OK, and I've unplug & re-plugged and made sure it "clicked" into place. Before I bite the bullet and take it back to the shop, any thoughs on what else I can check? I'm wondering if, when the mechanic was replacing the AOS, he may have inadvertently loosened a connection or damaged a wire. Or maybe he unplugged a wiring harness and didn't re-connect it properly. Is any the wiring for the bank 1 post-cat sensor routed near the AOS? Also, anyone know the procedure for checking the continuity from the sensor socket to the ECU? Thanks, Frank

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