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3.4L swap without swapping DME - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCH3.4L swap without swapping DME - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Run 2.7 timing and etc

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Suggestion
you would get some noticable power increase, but you would still be running 2.7 timing and etc....
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3.4L swap without swapping DME - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Run 2.7 timing and etc' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run 2.7 timing and etc' (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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Run boxster dme and get it flashed

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Suggestion
you need to run a Boxster DME and get it flashed to a 3.4 engine program.
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3.4L swap without swapping DME - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Frequently discussed actions (2)

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Run 2.7 timing and etc

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
you would get some noticable power increase, but you would still be running 2.7 timing and etc....
Original post Read captured discussion
3.4L swap without swapping DME - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Run boxster dme and get it flashed

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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
you need to run a Boxster DME and get it flashed to a 3.4 engine program.
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3.4L swap without swapping DME - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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

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POST 1 / ORIGINAL POSTEROriginal post

Does anyone know what would happen if a Boxster 2.7 was swapped for a 986 3.4L engine and the stock boxster DME was still used?

POST 2Original post

contact Scott at Softronic

POST 3Original post

I think member tholyoak could work something out for you.

POST 4Original post

If the 3.4 matched the 986's DME (5.2.2 with the same OR 7.2 with the same) ... then the engine would run, rough, but would run.... you would get some noticable power increase, but you would still be running 2.7 timing and etc.... you would need to get the DME flashed by a PST to the 3.4 program

POST 5Original post

you said the 986 3.4L. do you mean the 996 3.4L, or the 987 3.4L? the 987 motor is a no go with your current DME.

POST 6 / ORIGINAL POSTEROriginal post

Oh yes, I mean the 996 3.4L. Thanks. I've actual done it and it runs. I just don't know if I'm getting the full potential because the DME wasn't upgraded.

POST 7 / ORIGINAL POSTEROriginal post

Sorry, but what's PST? Do you know anyone that can do the proper flash? Looks like Softronics is one of them?! Anyone else? Of if I have access to the DME that the 996 engine came from, will it work if I just used that DME in my Box instead?

POST 8 / ORIGINAL POSTEROriginal post

The car is running rough and gives 1126, 1128, 1130, and 1133 error codes. Could this be the case? I did a search on the forum for these codes and it mostly relates to MAF or vacumn leak. Sorry for my ignorance, but what is MAF? and do you think it's actually MAF or because the DME wasn't upgraded?

POST 9Original post

PST is the Porsche Scanning tool... all dealers and some Indy shops have them.... you need to run a Boxster DME and get it flashed to a 3.4 engine program. The MAF (mass air flow sensor) will need to match that of the same generation of your engine... the tech that does the re scan can tell you if you have the right one or not...

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