24 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
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Discussion summary
YOUR RESEARCHBoost 0.3bar max - Page 2 - 911/Carrera GT - PistonHeads UK
Reported or suspected cause
sticking actuators and a boost leak
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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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.
Discussions that report identifying a cause
1
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Reported cause
Turned out to be sticking actuators and a boost leak.
Boost 0.3bar max - Page 2 - 911/Carrera GT - PistonHeads UK
Frequently discussed work
Check boost pressure as i plan
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
1
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Suggestion · Original poster
When driving yesterday, after replacing and recharging the air con condensers I was on a nice stretch of road and decided to check my boost pressure as I plan on fitting some mods soon.
Boost 0.3bar max - Page 2 - 911/Carrera GT - PistonHeads UK
Read full discussion summary
Leading evidence: 'sticking actuators and a boost leak' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'sticking actuators and a boost leak' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check boost pressure as i plan' (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 performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Performed · outcome unconfirmed
In had a service/MAF replacement/CV boots replaced/Actuators sorted and leak for £1011.
Boost 0.3bar max - Page 2 - 911/Carrera GT - PistonHeads UK
Check boost pressure as i plan
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.
Discussions that contain suggestions
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
When driving yesterday, after replacing and recharging the air con condensers I was on a nice stretch of road and decided to check my boost pressure as I plan on fitting some mods soon.
Boost 0.3bar max - Page 2 - 911/Carrera GT - PistonHeads UK
Check gate movement too
Suggestion or failed attempt
No successful repair reported for this finding.
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Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.
Discussions that contain suggestions
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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.
Boost 0.3bar max - Page 2 - 911/Carrera GT - PistonHeads UK
Check movement of the gates
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.
Discussions that contain suggestions
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Suggestion
If rods are good, you could try disconnecting them to check the movement of the gates.
Boost 0.3bar max - Page 2 - 911/Carrera GT - PistonHeads UK
Frequently discussed actions (6)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check boost pressure as i plan
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
When driving yesterday, after replacing and recharging the air con condensers I was on a nice stretch of road and decided to check my boost pressure as I plan on fitting some mods soon.
Boost 0.3bar max - Page 2 - 911/Carrera GT - PistonHeads UK
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.
24 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Gents, I know this issue has been covered a few times but unfortunately all the pics & links are dead.
When driving yesterday, after replacing and recharging the air con condensers I was on a nice stretch of road and decided to check my boost pressure as I plan on fitting some mods soon. Anyway I can only get it as far as 0.3 (it was a long straight) no matter what I tried. Going by the reading I've done I'm thinking stuck waste gate or faulty N75. Is that still the consensus of opinion and can someone please send me some pic/guide of how to check or replace these items.
no problem!
i'd start by looking for split / leaking hoses
ECU could be in safe / limp mode
bent or broken actuator rods
MAF
or
as you already mentioned iffy 75 valve
Just got mine back from same issue.
Normally boosts at 1.3-4 bar and dropped to 0.7.
Turned out to be sticking actuators and a boost leak.
Also had the MAF done. Suffice to say it is now going like the sh*t off a shovel again.
noble1978 said:
Don't suppose you are local to Aberdeen? How much did you get all that done for?
No sorry in Sheffield.
In had a service/MAF replacement/CV boots replaced/Actuators sorted and leak for £1011.
RPM Knaresborough did the work
noble1978 said:
Just had a look at your garage, you're 911 mad! Impressive.
Ha ha yeah got the bug 10 yrs ago mate, think i'm on my 12th now!
Madness i know but they do get under your skin.
I would say that you are looking at a 75, or ECU issue.
Even with 1 turbo operational, you should be able to see more than 0.3
To do a quick visual, jack the back up and have a look at the actuator rods. Near side has a greater tendency to snap than the off side. If snapped, check the gate movement too.
If rods are good, you could try disconnecting them to check the movement of the gates.
If all is ok under there, probably time to get it plugged in.
Limt mode??
Sticking actuators usually gives overboost as they are stuck shut (the position they are in more of the time if not in use or town use)
Agree with others N75, MAF or Limp due to boost leak
I Live in Banff and ordered a PIWIS (or whatever its called)but not arrived yet, or you could easy had a shot.
Standard Actuator springs are around 0.4 bar of boost.
A simple code reader will tell you if limp more or N75 fault.
michaelwoodling said:
all three of your threads are posted at 0900 and at around 11 you come back and say "nothing?"
Impatient eh? Might have only been 2 hours but I must've refreshed about 100 times! Felt like longer.
noble1978 said:
Impatient eh? Might have only been 2 hours but I must've refreshed about 100 times! Felt like longer.
Quite! No local specialist to use?
michaelwoodling said:
noble1978 said:
Impatient eh? Might have only been 2 hours but I must've refreshed about 100 times! Felt like longer.
Quite! No local specialist to use?
Not that I've managed to source yet. I'm in Aberdeen and am very open to suggestions. We have a main stealer here but......
