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Out of ideas

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15 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHOut of ideas

Leading reported evidence

Check first

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

That would be what to check first.

Out of ideas
Read full discussion summary

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

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1 matching discussions · 15 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check fuses

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 fuses?

Out of ideas

Check fuses c1 and c2

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 fuses C1 and C2

Out of ideas

Disconnect fuel line

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

I'd disconnect a fuel line under the car and see if anything comes out when you jump the fuel pump relay pins or use a PIWIS2 to activate final fuel stage in the DME

Out of ideas

Use piwis2

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

I'd disconnect a fuel line under the car and see if anything comes out when you jump the fuel pump relay pins or use a PIWIS2 to activate final fuel stage in the DME

Out of ideas
Frequently discussed actions (5)

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

Check first

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

That would be what to check first.

Out of ideas

Check fuses

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

Check the fuses?

Out of ideas

Check fuses c1 and c2

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

Check fuses C1 and C2

Out of ideas

Disconnect fuel line

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

I'd disconnect a fuel line under the car and see if anything comes out when you jump the fuel pump relay pins or use a PIWIS2 to activate final fuel stage in the DME

Out of ideas

Use piwis2

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

I'd disconnect a fuel line under the car and see if anything comes out when you jump the fuel pump relay pins or use a PIWIS2 to activate final fuel stage in the DME

Out of ideas
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.

15 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: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

2001 Carrera 4 132K miles - New Bosch Starter, New Fuel Pump from Porsche, JUST CRANKING NOT STARTING! - I am down right furious.

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 16782647

Zero!

POST 5Original post

If the crankshaft position sender is not sending a signal then the fuel pump does not work.nthis happened to me once years ago.

POST 6Original post

If not CPS, then perhaps ECU? Do you have access to another ECU you could swap in to see if result is different?

POST 7Original post

You're throwing parts at it now. Not sure why the starter was replaced. Is the fuel pump priming? What led up to this? Check the fuses? Battery ground cable secure and clean?

POST 8Original post

Stop throwing parts at it and start a systematic diagnosis and go from there. If you don't know how to do this then get someone that does.

POST 9Original post

From what others have posted (and in this thread as well), the most likely candidate for "cranks but won't start" is the crank position sensor. That would be what to check first. Do you have Durametric or know someone who does? It will tell you if there is a signal from the CPS.

POST 10Original post

best way to check CPS if diagnostics tools are not available, most time they wont log a fault, If the CPS is good, while cranking the tach needle should be moving or bouncing a little, if CPS is bad there will be no movement of the tach needle while cranking.

POST 12Original post

I had a no start issue last year, started out random, then left me sit once. While waiting on the flatbed tow, I hopped on here, did my research..no tach bounce=CPS.. while waiting the car decided to finally start so I cancelled the tow, drove it straight home and ordered the CPS. Never had a problem since.

POST 13Original post

Unless you actually measured fuel pressure at the rails already, the fuel pump could be running but the fuel line came off the pump inside the tank.

POST 14Original post

Quotes source post: 16790937

That happen to the kid car two years ago, fuel pump went out on the P-car, was watching and showing him how to change out the pump, he didn't install the pressure line to lock position, week and half later with a tow home, found pressure line popped off inside the tank.

POST 15Original post

Sounds fuel related, whats the backstory? Has it been sitting? Old fuel can clog the injectors and cause a crank but no start. I'd disconnect a fuel line under the car and see if anything comes out when you jump the fuel pump relay pins or use a PIWIS2 to activate final fuel stage in the DME

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