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99/01 Engine Swap

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YOUR RESEARCH99/01 Engine Swap

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Replace over

Performed · outcome unconfirmed

No successful repair reported for this finding.

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Unsuccessful attempts: 1
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Performed · outcome unconfirmed · Original poster
I've seen others mention the engine wiring harness from my manual needs to be swapped over but as a dig into this harness and sensors I haven't found any major differences.
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99/01 Engine Swap

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

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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've seen others mention the engine wiring harness from my manual needs to be swapped over but as a dig into this harness and sensors I haven't found any major differences.
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99/01 Engine Swap

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3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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Generation: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Good morning rennlisters. I'm currently swapping out the 175k 3.4 in my 99 C4 manual for a 52k 3.4 from an 01 C2 Tiptronic. I've seen others mention the engine wiring harness from my manual needs to be swapped over but as a dig into this harness and sensors I haven't found any major differences. The only additional component I've found is the additional vacuum control solenoid off the vacuum canister for the Tiptronic. Anyone know if this Tiptronic engine wiring harness will pug and play in my manual body? It's in much better condition than the high milage harness on my old engine. PS the 52k tiptronic tansmission is up on eBay w/ no reserve. Thanks! ~Jethro

POST 2Original post

If u r just swap the motor your existing harness and dme will work fine. Just confirm the sendors r the same. If they r not buy the sensor for your year and install in the new motor.

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 16617423

Thanks for the reply De Jeeper. I also came across this thread that confirms what you've said. https://rennlist.com/forums/996-foru...l-m96-car.html

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