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Spark plug gap?

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

Discussion summary

YOUR RESEARCHSpark plug gap?

Leading reported evidence

Check before installing

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

They should be gapped properly, but double check before installing.

Original post Read captured discussion
Spark plug gap?
Read full discussion summary

Leading evidence: 'Check before installing' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check before installing' (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 · 9 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Set gap correctly

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

At $16.98 I would hope they have already set the gap correctly.

Original post Read captured discussion
Spark plug gap?

Use bosch - fgr 6 kqc plug

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

They say to use the Bosch - FGR 6 KQC plug.

Original post Read captured discussion
Spark plug gap?

Use same plug

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

I do not use the new one, but still have the original plug FR6LDC and will use the same plug when I replace them or move to the Bosche Super R6-387.

Original post Read captured discussion
Spark plug gap?
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 before installing

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

They should be gapped properly, but double check before installing.

Original post Read captured discussion
Spark plug gap?

Set gap correctly

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

At $16.98 I would hope they have already set the gap correctly.

Original post Read captured discussion
Spark plug gap?

Use bosch - fgr 6 kqc plug

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

They say to use the Bosch - FGR 6 KQC plug.

Original post Read captured discussion
Spark plug gap?

Use same plug

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

I do not use the new one, but still have the original plug FR6LDC and will use the same plug when I replace them or move to the Bosche Super R6-387.

Original post Read captured discussion
Spark plug gap?
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.

9 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: 20261026T063944Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

'99 C2... what's the spark plug gap?? TIA.

POST 4Original post

Do these plugs come with the gap preset? 999-170-207-91 At $16.98 I would hope they have already set the gap correctly. On-line next time for these! Kris

POST 5Original post

They should be gapped properly, but double check before installing. I show a part number of: 999-170-207-90. This is the number for the new plugs that Porsche recommends. They say to use the Bosch - FGR 6 KQC plug. That's a four electrode plug. I do not use the new one, but still have the original plug FR6LDC and will use the same plug when I replace them or move to the Bosche Super R6-387.

POST 6Original post

The 999-170-207-91 was the one the dealer recommended to me and the one listed on Renntech DIY. It is also a four electrode plug as was the factor plug they replaced. Kris

POST 7Original post

They must have changed the part number again. The four electrode plugs have a better chance of being properly gapped at dilivery and I think just eyeballing them (unless you drop one) will suffice.

POST 8Original post

That is what I did. I just assumed they were gapped so I didn't think about checking them. The car runs great, there is no way I am going to go back in to check them out at this point. The old ones were certainly ready for a change.

POST 9 / ORIGINAL POSTEROriginal post

I assumed they would come pre-gapped but I wanted to make sure before installing them. That's why I asked what the gap was. BTW - I paid $6.93 per plug (FGR6KQC Spark Plug; Copper; 4 Ground Electrode; OE Plug ) at http://www.autohausaz.com/

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