9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHProblems on starting up: chugging.
Leading reported evidence
Use local garage, they have the porsche diagnostic stuff
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed · Original poster
I used my local garage, they have the Porsche diagnostic stuff.
Leading evidence: 'Use local garage, they have the porsche diagnostic stuff' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check connector first' (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
I would say to check the connector first, but the sensor is most likely failing.
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
In cases like this it is always best to start by getting a diagnostic check done.
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
OTC Hatfield : £410 incl VAT to replace the 'crankshaft position sensor'
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
Should have used 'The Force Luke' and found a decent Indy.
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.
Porsche Club GB: 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I am having problems on firing her up.
Last two weeks the first engine start of the day has been fine. Turn the ignition key and it starts as normal. But on the second and third starts the engine has chugged and taken 3-4 seconds to kick in and start up. Yesterday it did the same again and on starting up for the 4th trip of the day, it refused to start. Waited an hour...then it started again. Whats going on?
One other possible clue, two weeks ago, accelerating away down a slip-road onto the M1 it slipped a gear. Never done that in the 8 years i've had the car! I stopped the car immediately, restarted and everything was fine again and has been driving fine for the part two weeks, even with hard accelerations.
Help!
[Edit: car was refuelled with half a tank of petrol the morning of the car not starting that afternoon.]
[2nd edit: speaking to someone in the office, could it be the Mass Flow sensor?]
In cases like this it is always best to start by getting a diagnostic check done. If it shows something, it will save a lot of guesswork. Otherwise you will be down to parts-swapping diagnosis, which is expensive!
Got a diagnostic done and the errors that came up were: P0335 and P0336. These are for 'crankshaft position sensors'. The garage reset everything and told me to drive the car as normal. If the stalling and chugging re-appear, then i'll need the sensors replaced.
Googled at random: http://www.datsc.com/tabid/122/OBD-Error-Code/P0335/Diagnostics/Porsche/Default.aspx
I used my local garage, they have the Porsche diagnostic stuff. Total cost so far: nil. Fingers crossed.
I would say to check the connector first, but the sensor is most likely failing. It isn't an uncommon fault, and when they go completely you won't even get any chugging - it won't even start. The sensor from Porsche is about £135, but I expect your indy would be able to get one cheaper elsewhere. Not a terribly difficult job to do if the car is on a lift.
Edit: There is only one crankshaft position sensor, by the way.
Thx Richard.
Car kept stalling this weekend. Spoke to my indy this morning and I was not comfortable with him doing the job, nor was he, so OPC here we come.
OTC Hatfield : £410 incl VAT to replace the 'crankshaft position sensor'
Running fine now apparently and gets re-delivered this evening.
Fingers crossed that thats is the end of that.
Should have used 'The Force Luke' and found a decent Indy.
These OPC are great for parts but I believe should only be used for cars under 5-6 years old.
They just have not got the staff who have been trained by Porsche on the older cars
Most Indies have technicians who where trained by Porsche 8 -15 years ago so know moreabout our cars.
This is a source reference. Confirm exact model applicability in the original material.
