5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHslight loss of accelearation
Leading reported evidence
Replace timing/lift toward high rpm profile
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
~3200 is where the cams change timing/lift toward high RPM profile.
Leading evidence: 'Replace timing/lift toward high rpm profile' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace timing/lift toward high rpm profile' (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.
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 don't have a good shop manual but I believe I read that the 996 3.6 engine does have a secondary much like the old 4 barrel carbs I grew up with and it acts as if it's only running on the front two.
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 don't have a good shop manual but I believe I read that the 996 3.6 engine does have a secondary much like the old 4 barrel carbs I grew up with and it acts as if it's only running on the front two.
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.
Pelican Parts: 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I've owned my 02 996 for about 4 months and have noticed a loss of power. Not the usual, "I'm getting used to it'.
The car had a KICK to it above 35-6500rpm but now it's flat all the way up through the rpm range. NO, it's not a dawg but it is noticeable. Before I left on a long trip I had a code reading secondary air injector. I erased it and did a quick tune up in a bottle. Not much change. The day before leaving for return trip back came the code. Called my mechanic Son and he advised some good injector cleaner and some octane boost just to see what happens. After a few hours of driving the CAR WOKE UP!! the kick was back with a big smile on my face. Now it's back to it's lazy days again.
Research has given me a few areas such as mass air, secondary air inj. I don't have a good shop manual but I believe I read that the 996 3.6 engine does have a secondary much like the old 4 barrel carbs I grew up with and it acts as if it's only running on the front two. Any ideas. thanks, tom m Ocala, FL
I have a 02 with the 3.6 that has been rebuilt to a 3.8. I wound not take advice on a 911 from a mechanics kid. I would start with the basics.
1)Air intake.
2)fuel
3)spark
If all those are fine, IE filters and plugs, coil packs, then comes the other stuff. MAF, which you would get a code for. Air injection you can hear it when its shot.
Also you can loose power on the higher RMP with a bad clutch, like slipping.
I would take it to a good Porsche mechanic. He will figure it out.
Robert
When my MAS went I got a PCM/ABS light. Car ran fine.
No strange noises as air injector you explained to me. The car does have a very small idle problem, you can hardly notice it at all and does clear up as soon as I rev to move the car. Clutch is good no slip. I'll start with the obvious as you suggested.
The car is so much fun to drive. My last was an 83 911, wow what a difference. This has also been my peace meal as I have just curtailed my racing down to a couple of races a year. Did it for 29 years SCCA, Formula and production. Would love to find a young not so fortunate kid and put him in the Spec Miata I also own but most of the younger kids would rather take their chances on the street. It's a tough sell to get them on the track. Thanks again
There is no secondary throttle plate. ~3200 is where the cams change timing/lift toward high RPM profile. One of your cam solenoids may be malfunctioning. I would think it would throw a code.
Buy a Bentley manual for your 996.
Porsche 911 Carrera (Type 996) Service Manual: 1999, 2000, 2001, 2002, 2003, 2004, 2005: Bentley Publishers: 9780837617107: Amazon.com: Books
Or "Porsche 996 the essential companion" This has a lot of information less DIY
Porsche 996 The Essential Companion: Supreme Porsche: Adrian Streather: 9781845840969: Amazon.com: Books
