6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHigh idle when cold. . .
Leading reported evidence
Clean using carb cleaner
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
Discussions
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
It is located on the left side of the throttlebody and can be cleaned using carb cleaner.
Leading evidence: 'Clean using carb cleaner' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean idle control valve (icv)' (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.
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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1
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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
Can you or anyone recommend an engine diagram for me to locate various parts?
Set off the cel about once a week (1123/1125 codes)
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
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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
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Suggestion · Original poster
So--the one repair I have had done is replacement of the MAF a couple weeks ago; it was setting off the CEL about once a week (1123/1125 codes).
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.
6 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: 20261026T052503Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hey guys, I'm a newish 996 owner that has learned a great deal from this site. My car is a 1999 C2, bought it with just under 30K miles and I now have about 5K on it myself. It's a champ. . . still need to get pics up of course. Silver body, black leather, all sport options, I put in a custom stereo from Rod out west, etc. Sweet.
So--the one repair I have had done is replacement of the MAF a couple weeks ago; it was setting off the CEL about once a week (1123/1125 codes).
Now, with the turn of cold weather and if the car has been sitting overnight or longer, it idles at maybe 1600-1800 instead of the normal 800-900rpm, until the car starts to move. Then, all is normal again, including normal idles. Is this a cold idle setting of some sort, or should I remedy this, and if so, how?
thanks for the help on a rookie question--Justin
Justin - Welcome to Rennlist. Your car "sounds" nice, but we can't tell for certain without pics.
Pics?? Did someone say PICS????? Come on "newbie, post the !@#$%^&* pics!
OK, I got that out of the way (the other guys MAKE me do that, you know!). Yes, 1,600-1,800 seems high. Your engins shosuld idle at about 1,100 RPM when first started, and then should settle to 800 RPM after a minute or so. Not sure what the fix is. Maybe someone else will comment here.
Again, Welcome!
Remove and clean the idle control valve (ICV). It is located on the left side of the throttlebody and can be cleaned using carb cleaner. Remove 2 screws, saving gasket, clean and reinstall.
gota911: ok I'm on it. I'm actually right down the road in Charlotte. . .
1999: Thanks for the ICV advice. Can you or anyone recommend an engine diagram for me to locate various parts? Like I said, rookie. . .
thanks, j
Here is a link to the Porsche site showing a 997 3.6L engine. Click on
3.6 liter flat 6 cylinder engine
. If you put the mouse pointer in the numbers on the right, the corresponding number will appear on the engine drawing.
http://www.porsche.com/usa/models/91...s/?gtabindex=2
This is a source reference. Confirm exact model applicability in the original material.
