YOUR RESEARCHInstall 991 MA103 engine in to 987.2
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Read captured repliesInsufficient extracted evidence does not mean there is no answer in the original discussions.
1 matching discussions · 3 captured posts examined · 1 partial discussions
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.
3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Is this possible? I have searched various forums and understand that, as general rules: 1. It is hard, but not impossible, to install a DFI engine into an EFI car (ie 3.8DFI into a 987.1) 2. When making an engine swap, try to match generations 997.1 - 987.1; 997.2 - 987.2 . BUT: I can't find the definitive answer on whether I could install an MA103 engine in to a 987.2 with a minimum of fuss. Any advice would be gratefully received.
Define minimum fuss. The biggest issue you will face is that the ECUs are not compatible. So you will have to find a way to integrate the newer ECU into the older wiring harness.
Many thanks. Am I correct to understand that the MA101 ECU will require a flash anyway? If that is the case, how much more work is required to integrate the MA103 ECU into the existing 987.2 harness? Does it require as much work as placing a DFI engine into. 987.1 series car?
This is a source reference. Confirm exact model applicability in the original material.
