14 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHThrottle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
Reported repair
Repair very similar symptom by changing the air filter
Reported resolution
1
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 report a fix
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.
Reported fix
I just fixed a very similar symptom on my car by changing the air filter.
Throttle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
Read full discussion summary
Leading evidence: 'Repair very similar symptom by changing the air filter' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, The most frequently discussed action is 'Repair very similar symptom by changing the air filter' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Repair very similar symptom by changing the air filter', supported by resolution reports in 1 discussions. 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.
Throttle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
Check engine
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
check the engine to see that all vacuum hoses are connected (especially to resonance flapper).
Throttle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
Clean these sensors)
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
to diagnose, perhaps try unplugging the mass airflow sensor and see if the car changes behavior; that will help determine if it needs changing (i don't recommend cleaning as i've not had any luck with cleaning these sensors).
Throttle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
Replace (i don't
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
to diagnose, perhaps try unplugging the mass airflow sensor and see if the car changes behavior; that will help determine if it needs changing (i don't recommend cleaning as i've not had any luck with cleaning these sensors).
Throttle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
Clean these sensors)
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
to diagnose, perhaps try unplugging the mass airflow sensor and see if the car changes behavior; that will help determine if it needs changing (i don't recommend cleaning as i've not had any luck with cleaning these sensors).
Throttle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
Replace (i don't
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
to diagnose, perhaps try unplugging the mass airflow sensor and see if the car changes behavior; that will help determine if it needs changing (i don't recommend cleaning as i've not had any luck with cleaning these sensors).
Throttle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
Replace behavior;
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
to diagnose, perhaps try unplugging the mass airflow sensor and see if the car changes behavior; that will help determine if it needs changing (i don't recommend cleaning as i've not had any luck with cleaning these sensors).
Throttle hesitation in ?98 996 C2 Manual cable throttle, I need your help!
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.
14 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: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi everybody, last week I decided that the 997 needs an older brother. So, I bought a 996 C2 Manual with the cool cable throttle, I would also like to mention that it is a beautiful spec, incl. M030, sport suspension and seats, LSD, 996 turbo wheels etc. So, I am excited to say the least. BUT. I noticed a throttle hesitation issue.
When I say accelerate by pressing the pedal up to 80% all is fine. But quite frequently when I give it the full beans it stutters and hesitates. At 4,000 RPM and above. As an example, when I accelerate on 2nd gear up to 7,000 RPM at 50% percent and then shift to third and press the accelerator to 100% it jolts and stutters and I feel as if not only I pressed the throttle at 80% but rather 40%. It seems like a fuel delivery issue. Would anybody know how to solve this or where it is coming from?
Many thanks,
Bob
could be a lot of things; fuel filter (crud in the fuel filter that stirs up at high flow) dying fuel pump, some bad fuel trims, bad mass airflow sensor, failing throttle position sensor, resonance tube not working properly. sounds a bit like liimp mode behaviour, but you should have a cel in that case. to diagnose, perhaps try unplugging the mass airflow sensor and see if the car changes behavior; that will help determine if it needs changing (i don't recommend cleaning as i've not had any luck with cleaning these sensors). also, change the fuel filter regardless as it's a new car to you and you might not know the previous maintenance history. you can also reset the ecu to get rid of any old fuel trim data. check the engine to see that all vacuum hoses are connected (especially to resonance flapper). if you have the tools you can measure fuel pressure, otherwise i think next step would be off to someone with the ability to pull codes and engine data.
OR ITS THE IMS!!! just joking; i just wanted to beat someone else to it.
I second the fuel filter/fuel pump hypothesis, perhaps maybe even clogged fuel injectors, that's where I would start investigating. By the way, absolutely beautiful car, love the black, reminds me of my soul!
yeah man, i bet i clogged air filter could be a cause. but if your filter is so clogged it's bogging the engine on your new/used car then you got bigger problems. time go get the microscope out and give the whole car a once-over because you can now assume that NO maintenance has been done.
Thanks! I will check the air filter then as well. Then move on, the ECU was checked and reported no faults. Thanks! Compared to my speed yellow 997 it is a breath of fresh air :-)
Man, that would be great if this would be the case!!!
It was inspected via PPI at Porsche and yesterday at a indy shop all is great. Honestly the 4 hour PPI revealed some things but nothing bad.
Speaking of which, I ordered a BMC filter, do they need to be oiled.
Haha to be honest, I have it now 6 days so not much passing was being done, specifically due to the fact that I have 7 year old tires. I intend to put on some Michelin Cross climates on.
My cable car had a similar issue but only on cold start where it just didn’t like the gas pedal. After changing the pump and upgrading injectors she has purring like a kitten. The older gen 996 are becoming known with failing injectors. You can’t really even find actual new oem injectors let alone at a reasonable price. I say do a full fuel overhaul and be done with it. Some also have a two way valve in the fuel tank.
So the topic has been solved! It was in fact the MAF sensor. The mechanic was kind enough to ask one of his customers to drop by with the same vintage car and we swapped after which the car had as if 100 more horsepower :-D.
Thanks for all the help!
