Porsche Club GB

Cold start issues

Add to repair workspace

New repair projectOpen repair workspace

Original source

3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCold start issues

Leading reported evidence

Check invoices and the crank sensor is one

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 checked the invoices and the crank sensor is one that has been replaced.
Original post Read captured discussion
Cold start issues

Read full discussion summary

Leading evidence: 'Check invoices and the crank sensor is one' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check invoices and the crank sensor is one' (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.

Read captured replies

1 matching discussions · 3 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace but the crankshaft sensor can cause starting issues

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Not sure what you have had replaced but the Crankshaft Sensor can cause starting issues but usually when hot.
Original post Read captured discussion
Cold start issues

Recommend by the porsche garage i

Suggestion or failed attempt

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
I have had a new MAF fitted and a couple of other sensors recommended by the Porsche garage I use, but issue still persists.
Original post Read captured discussion
Cold start issues

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check invoices and the crank sensor is one

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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 checked the invoices and the crank sensor is one that has been replaced.
Original post Read captured discussion
Cold start issues

Recommend by the porsche garage i

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
I have had a new MAF fitted and a couple of other sensors recommended by the Porsche garage I use, but issue still persists.
Original post Read captured discussion
Cold start issues

Replace but the crankshaft sensor can cause starting issues

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Not sure what you have had replaced but the Crankshaft Sensor can cause starting issues but usually when hot.
Original post Read captured discussion
Cold start issues

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.

3 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: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi Can anybody help me with trouble shooting a cold start issue I have on my 2001 996 C4. When winter draws in and mornings get colder I have to turn the car over increasingly more times before it starts. Last year it was a max of three times before starting this year I am up to five times before it starts. I have had a new MAF fitted and a couple of other sensors recommended by the Porsche garage I use, but issue still persists. When the car is warm it starts first time every time. I drive it regularly, battery has been checked and is strong. Any advice gratefully received many thanks. Richard

POST 2Original post

Hi Richard Not sure what you have had replaced but the Crankshaft Sensor can cause starting issues but usually when hot. If it does start the I wonder if its fuel pressure related? Good luck Andy

POST 3 / ORIGINAL POSTEROriginal post

Thanks Andy i checked the invoices and the crank sensor is one that has been replaced. I will do a bit of digging on the fuel pressure question.

This is a source reference. Confirm exact model applicability in the original material.