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Fuel Pump Cutoff Switch

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

Discussion summary

YOUR RESEARCHFuel Pump Cutoff Switch

Leading reported evidence

Recommend safest way of wiring a switch in

Suggestion or failed attempt

No successful repair reported for this finding.

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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.

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Suggestion · Original poster

Hoping someone can recommend safest way of wiring a switch in that will not cause any damage.

Fuel Pump Cutoff Switch
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Leading evidence: 'Recommend safest way of wiring a switch in' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend safest way of wiring a switch in' (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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1 matching discussions · 3 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Run inline switch be sure

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

If you go to the fuse to run an inline switch be sure to get a high amperage,30 amp capable switch, as the fuse (depending on year of car) is either a 25 or 30 amp.

Fuel Pump Cutoff Switch

Use low amperage dash switch

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

If you really want a switch mounted in dash, then go to the relay and break the control voltage side of the relay so you can use a low amperage dash switch.

Fuel Pump Cutoff Switch
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.

Recommend safest way of wiring a switch in

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

Hoping someone can recommend safest way of wiring a switch in that will not cause any damage.

Fuel Pump Cutoff Switch

Run inline switch be sure

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

If you go to the fuse to run an inline switch be sure to get a high amperage,30 amp capable switch, as the fuse (depending on year of car) is either a 25 or 30 amp.

Fuel Pump Cutoff Switch

Use low amperage dash switch

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

If you really want a switch mounted in dash, then go to the relay and break the control voltage side of the relay so you can use a low amperage dash switch.

Fuel Pump Cutoff Switch
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.

  • Rennlist: 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: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I would like to add a fuel pump cutoff switch to my 996. In my classic vw I have a switch on the fuel pump so after winter storage I can turn engine over a few times and build oil pressure before starting after sitting long periods. Should I wire switch to fuse or fuel pump relay? Hoping someone can recommend safest way of wiring a switch in that will not cause any damage. I would like to replace one of the dummy switches on the dash with one that lights up when fuel pump is OFF. Perhaps an additional PSM switch could used? Thank you for any advice or insight!!!

POST 2Original post

Quotes source post: 19854107

Well, if its just after winter storage, why complicate the matter. Just pull fuel pump fuse..? If you really want a switch mounted in dash, then go to the relay and break the control voltage side of the relay so you can use a low amperage dash switch. If you go to the fuse to run an inline switch be sure to get a high amperage,30 amp capable switch, as the fuse (depending on year of car) is either a 25 or 30 amp. PSM type switch is not high amperage capable and will burn up shortly. jmo

POST 3Original post

I�ve read that turning this M96 engine over with the starter alone does not build sufficient oil pressure or volume to prevent engine wear on cold start.

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