Rennlist

Misfire Help

Add to repair workspace

New repair projectOpen repair workspace

Original source

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHMisfire Help

Leading reported evidence

Check codes, clear the codes, try again and same response

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 · Original poster
Check the codes, clear the codes, try again and same response.
Original post Read captured discussion
Misfire Help

Read full discussion summary

Leading evidence: 'Check codes, clear the codes, try again and same response' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check codes, clear the codes, try again and same response' (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 · 2 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Check status and see the engine light "take in

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 pull over, check status and see the engine light "take in for Service" on the dash.
Original post Read captured discussion
Misfire Help

Frequently discussed actions (2)

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

Check codes, clear the codes, try again and same response

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
Check the codes, clear the codes, try again and same response.
Original post Read captured discussion
Misfire Help

Check status and see the engine light "take in

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 pull over, check status and see the engine light "take in for Service" on the dash.
Original post Read captured discussion
Misfire 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.

2 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: 20261026T112012Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Anyone with experience on these codes? PO300 - 507 Misfire Detected PO301 - 508 Misfire Cylinder 1 PO302 - 510 MIsfire Cylinder 2 PO1250 - Boost Pressure Deviation Exceeds Limit Value P1508 - 408 Function Monitor Torque Comparison PO601 - DME Relay Porsche Fault code. Driving the car in light traffic, 5 miles into a short drive. Just as I accelerate in 3rd gear, roughly 50 mph I get a engine light and the engine stalls. I pull over, check status and see the engine light "take in for Service" on the dash. I start the engine, it idles for 2 seconds , gasps for air, sputter and stall. tow the car home and same, start idle for 2 and stall. Check the codes, clear the codes, try again and same response. the 2 second idles sounds great, and poof its off. I'm getting gas to start, so DME is out.. I don't know whether to start with plugs and coils or if I can get some feedback on what other direction to go. 2003 996TT - 41K. Tuned/serviced 18 months/500 miles ago. Codes read with Durametric reader/software. Any ideas?

POST 2Original post

You may get better help in the turbo 996 forum as your error codes are related to the turbos (boost).

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