What system does this diagram show?

It shows an exploded view of the fuel tank vent / carbon canister system, including the canister assembly (callout 1), vent hoses (3, 8), valves and seals (6, 9, 10, 12), and mounting hardware (2, 5, 7, 11).

Where does the air from behind the gas door go?

Per the uploader's blue-arrow annotation, air from behind the gas door travels along the upper vent line (callout 8) toward the fittings near callouts 9 and 12 and down toward the canister area.

Does the diagram list part numbers?

No. Only numbered callouts (1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12) are shown; no part numbers or legend table appear in the image.

What is the uploader asking in the annotation?

A red note reading "where does this connect?" points to an open connector or fitting near callout 9 on the vent line, indicating uncertainty about that connection point.

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Porsche 911 Carrera (996) Fuel Tank Vent & Carbon Canister Exploded Diagram

Exploded parts diagram of an evap canister assembly with numbered callouts

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Exploded parts diagram of an evaporative emissions canister assembly with numbered callouts and hand-drawn annotations.

AI caption June 2010 · Photo 51 of 109

This document is an exploded parts diagram, apparently from a Porsche parts catalog, showing the fuel tank venting / evaporative emissions (carbon canister) system. It depicts the carbon canister assembly (callout 1) with its mounting bracket and fasteners (2, 5, 7), a long vent hose with electrical connector (3), valves/sensors with O-ring seals (6, 9, 10), the upper vent line assembly (8), mounting bolts (11), and a cap or valve at the top of the vent line (12). The uploader has annotated the scan in red and blue: blue arrows trace the airflow path along the upper vent line, labeled "Air from behind gas door," and a red note asks "where does this connect?" pointing at an open fitting near callout 9. The image contains no printed part numbers, legend table, model designation, or year information — only the numbered callouts and the uploader's annotations. It is filed in the uploader's 2000 Porsche Carrera gallery alongside related scans titled "Vent system2.JPG" and "carbon control.JPG," suggesting it documents troubleshooting of the fuel filler/gas door vent line routing on that vehicle. A reader can learn the relative arrangement of the vent line, valves, and carbon canister components in this system.

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Frequently asked questions

What system does this diagram show?: It shows an exploded view of the fuel tank vent / carbon canister system, including the canister assembly (callout 1), vent hoses (3, 8), valves and seals (6, 9, 10, 12), and mounting hardware (2, 5, 7, 11).
Where does the air from behind the gas door go?: Per the uploader's blue-arrow annotation, air from behind the gas door travels along the upper vent line (callout 8) toward the fittings near callouts 9 and 12 and down toward the canister area.
Does the diagram list part numbers?: No. Only numbered callouts (1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12) are shown; no part numbers or legend table appear in the image.
What is the uploader asking in the annotation?: A red note reading "where does this connect?" points to an open connector or fitting near callout 9 on the vent line, indicating uncertainty about that connection point.

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