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996 Ignition Sitch Issue

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

Discussion summary

YOUR RESEARCH996 Ignition Sitch Issue

Leading reported evidence

Check power at this terminal

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 checked power at this terminal with everything off and no power.

Original post Read captured discussion
996 Ignition Sitch Issue
Read full discussion summary

Leading evidence: 'Check power at this terminal' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check power at this terminal' (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 · 5 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Install gm ls3 in my 2000 996

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 installed a GM LS3 in my 2000 996.

Original post Read captured discussion
996 Ignition Sitch Issue

Replace 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 · Original poster

I thought my switch might be bad, so I replaced the switch, but same situation.

Original post Read captured discussion
996 Ignition Sitch Issue

Run "

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 · Original poster

I start the car and when moving key to the "OFF" position, the motor continues to "RUN".

Original post Read captured discussion
996 Ignition Sitch Issue
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 power at this terminal

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 checked power at this terminal with everything off and no power.

Original post Read captured discussion
996 Ignition Sitch Issue

Install gm ls3 in my 2000 996

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 a GM LS3 in my 2000 996.

Original post Read captured discussion
996 Ignition Sitch Issue

Replace 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 · Original poster

I thought my switch might be bad, so I replaced the switch, but same situation.

Original post Read captured discussion
996 Ignition Sitch Issue

Run "

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 start the car and when moving key to the "OFF" position, the motor continues to "RUN".

Original post Read captured discussion
996 Ignition Sitch Issue
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.

5 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: 20261026T112012Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I installed a GM LS3 in my 2000 996. Must say that 500 HP is a wicked ride!! I start the car and when moving key to the "OFF" position, the motor continues to "RUN". I remove the key and everything shuts down. I place the key back in the ignition and no power until I turn the switch on. The only way to kill the engine is to remove the key. When I installed the engine, I powered the GM fuse box by splicing into the group of orange wires on terminal "S98" of the switch. I checked power at this terminal with everything off and no power. Turn the key on and get 12 volts. Turn the key off and I still have twelve volts. Remove key and no power. I thought my switch might be bad, so I replaced the switch, but same situation. I then thought maybe I had spliced into the wrong wire. I checked power at the 3 red/white wires - Power at all times. There is a Black/Yellow wire on terminal "50" that has no power in off position. Turn to on and power is present. Turn engine over and get a "No Start" on the engine. Any ideas appreciated. I can't find any wiring diagrams/which wires do what anywhere in the forum or on the web.

POST 2Original post

The radio continues to work when the key is switched off but left in the ignition. Might be related to that. PM me with your email address and I will send you a DropBox link with the shop manual in a searchable PDF format. It includes all the wiring diagrams which should help. But then you have to let me drive the thing��

POST 3Original post

Quotes source post: 13750917

Paging Dr. Slakker... paging Dr. Slakker... If I recall, he recently did a major rewiring in his race car, so prolly has some good tips.

POST 5Original post

The ignition switch is an ongoing PITA for many of us - and when they crap out (the electrical part of the switch), the car does very strange things. Assuming you grabbed the correct wire, it may be time to swap out the electrical portion of the ignition switch. Loads of DIY's here.

This is a source reference. Confirm exact model applicability in the original material.