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Putting 2000 996 motor in a 1999 996

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

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YOUR RESEARCHPutting 2000 996 motor in a 1999 996

Leading reported evidence

Replace from cable throttle

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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.

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Suggestion · Original poster
I believe there was a change from cable throttle to "drive by wire".
Original post Read captured discussion
Putting 2000 996 motor in a 1999 996

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Leading evidence: 'Replace from cable throttle' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace from cable throttle' (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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Use 99 tb harness and computer

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
U will have to use the 99 tb harness and computer.
Original post Read captured discussion
Putting 2000 996 motor in a 1999 996

Frequently discussed actions (2)

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Replace from cable throttle

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 believe there was a change from cable throttle to "drive by wire".
Original post Read captured discussion
Putting 2000 996 motor in a 1999 996

Use 99 tb harness and computer

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
U will have to use the 99 tb harness and computer.
Original post Read captured discussion
Putting 2000 996 motor in a 1999 996

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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.

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: 20261027T020439Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a 2000 911 996 automatic coupe with a good engine, but otherwise just OK. I have the opportunity to purchase a 1999 911 996 manual transmission coupe in good shape but with a blown engine, at a great price. Will the 2000 motor go in the 1999 without any problems? Transaxles stay put. Just a motor swap. I believe there was a change from cable throttle to "drive by wire". Can this be easily handled? if so how? Any other complications? Thanks for any help. John

POST 2Original post

Easy swap. Motor is identical. U will have to use the 99 tb harness and computer.

POST 3Original post

Make sure the 99 is egas and not cable driven

POST 4Original post

Quotes source post: 18371679

Does not matter if it's egas. See De Jeepers post above.

POST 5Original post

If the 99 was a C4 then it already has egas .

POST 6Original post

Hey doesn’t state it’s a c4

POST 7Original post

Quotes source post: 18372369

As i saId it doesnt matter. The motor is the same. Things that bolt to the motor may be different.....thats why u swap original parts to the new motor.

POST 8Original post

FWIW� I�ve got a 2000 MY (M96/04) in my �99 C4� While I didn�t do the swap, I�ve had the engine out and I can attest that there are no extra/loose wires or connectors - ie. nothing out of the ordinary. The only caveat being the difference between the tiptronic and the manual trans in your case�

POST 9 / ORIGINAL POSTEROriginal post

Well I'll try posting this for the 3rd time. Thanks to all for the quick response and good information. John

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