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Plug identification

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

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YOUR RESEARCHPlug identification

Leading reported evidence

Use by a porsche dealer (piwis)

Performed · outcome unconfirmed

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed
I believe it can be used by a Porsche dealer (PIWIS) to read some diagnostics from the engine, but that is all I know.
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Plug identification

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Leading evidence: 'Use by a porsche dealer (piwis)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use by a porsche dealer (piwis)' (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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Frequently discussed actions (1)

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Use by a porsche dealer (piwis)

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
I believe it can be used by a Porsche dealer (PIWIS) to read some diagnostics from the engine, but that is all I know.
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Plug identification

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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.

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

Rennlist: 1 discussions

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Generation: 20261027T053112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

2004 C2. This plug sits on passenger side towards the rear of the car. It is part of a bundle of wires which includes the passengers side oxygen sensors and MAF sensor wires. It doesn't have length to go far from the right rear of the car but I don't have anything it plugs into. Can someone identify what this plug is for? The plug I am referring to is the top plug in the picture with no connection. Possibly the rear automatic spoiler (I have factory aero package)?

POST 2Original post

There is an empty wire harness plug there that goes nowhere and plugs into nothing. I believe it can be used by a Porsche dealer (PIWIS) to read some diagnostics from the engine, but that is all I know. I also think there is a kind of black plastic holder for it, right side of engine bay on the back shelf.

POST 3Original post

It's called the "Automatic Exhaust Gas Recirculation Examination Connector"...It's is used at the assembly line/factory, not used by PIWIS or anything, has a data line from the DME only though that can carry the same info from DME, but no other data lines included in it like the PIWIS/OBDII connector.

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