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Porsche 996 ECU replacement

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHPorsche 996 ECU replacement

Leading reported evidence

Replace ecu

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

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 now have to change my ECU.
Original post Read captured discussion
Porsche 996 ECU replacement

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

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1 matching discussions · 6 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Test things out

Suggestion or failed attempt

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0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
Getting used ECUs for a 996 is not like in the older cars where you could get used unit and test things out.
Original post Read captured discussion
Porsche 996 ECU replacement

Use ecus

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
Getting used ECUs for a 996 is not like in the older cars where you could get used unit and test things out.
Original post Read captured discussion
Porsche 996 ECU replacement

Use ecus can be had

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
Good used ecus can be had for a couple of hundred, Ecu doctors can code the immobilizer If you send them the keys and security module.
Original post Read captured discussion
Porsche 996 ECU replacement

Use input

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
Could use your input on a matter.
Original post Read captured discussion
Porsche 996 ECU replacement

Frequently discussed actions (7)

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

Replace ecu

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 now have to change my ECU.
Original post Read captured discussion
Porsche 996 ECU replacement

Test things out

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
Getting used ECUs for a 996 is not like in the older cars where you could get used unit and test things out.
Original post Read captured discussion
Porsche 996 ECU replacement

Use ecus

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
Getting used ECUs for a 996 is not like in the older cars where you could get used unit and test things out.
Original post Read captured discussion
Porsche 996 ECU replacement

Use ecus can be had

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
Good used ecus can be had for a couple of hundred, Ecu doctors can code the immobilizer If you send them the keys and security module.
Original post Read captured discussion
Porsche 996 ECU replacement

Use input

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
Could use your input on a matter.
Original post Read captured discussion
Porsche 996 ECU replacement

Use piwis

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
If so, that is very unusual and like Jeff and others have said, any other DME has to be programmed using PIWIS with IPAS codes that only authorized persons have accesss to..
Original post Read captured discussion
Porsche 996 ECU replacement

Use unit

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
Getting used ECUs for a 996 is not like in the older cars where you could get used unit and test things out.
Original post Read captured discussion
Porsche 996 ECU replacement

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.

6 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: 20261027T201111Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all, Could use your input on a matter. My 1999 996 was missing, and the idle was hunting. When the agents looked at it, they found that the ECU voltage is low, and couldn't be fixed. I now have to change my ECU. Does anyone know where I could buy a 996 ECU? Also, would a pre-owned ECU be ok to plug in, or would it have to be reconfigured? Thanks in advance! Vishwaka

POST 2Original post

Swapping DME's without recoding will simply not work.

POST 3Original post

Quotes source post: 18617020

I'd get a trusted professional second opinion diagnostic for sure and try and avoid changing out the original. Its a specialized coding job to get it right. As ecu(DME) & immobilizer unit under the driver seat, & all keys,,, all need to be coded to match each other perfectly or no start/no run. There was just a good thread on the same subject, you should read it.... If ecu is positively needed, ECUDoctors is the place to go, they can fix your original more than likely, and if needed can code the complete set. They're good guys. jmo

POST 4Original post

Are you talking about the 5 volt reference volage the DME sends out to Sensors is much lower than 5v ? If so, that is very unusual and like Jeff and others have said, any other DME has to be programmed using PIWIS with IPAS codes that only authorized persons have accesss to..

POST 5Original post

Good used ecus can be had for a couple of hundred, Ecu doctors can code the immobilizer If you send them the keys and security module. They can also bypass the security altogether if you want.

POST 6Original post

Thanks @ dgmark and @ allcool @ Vishwaka Getting used ECUs for a 996 is not like in the older cars where you could get used unit and test things out. Programming is necessary. See these 2 videos that explain it in detail: You Tube and You Tube

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