Swapping N52B30 from B25

[Limonge]

Hello folks,

I have a 2.5si with the N52B25 engine, which is taking some oil and I got tired of it. I had the option to rebuild the engine (a lot of money to then be "stuck" with the same power), or just swap it to a N52B30 engine.

I bought an E86 to source the engine, gearbox etc from it. The question that I have is, after swapping the engine into my car, will it turn on or do I need to do something with EWS? I know I have to flash the correct map with winKFP.

Thanks!!

 

[enuff_zed]

I'm not 100% certain, but I believe the only link between the engine and the EWS is the DME.
If you retain the same DME then apart from having to update it's map, it should still happily talk to the EWS.
However, if you fit the DME from the E86, you will have the correct map already, but you will need to tell the DME not to talk to the EWS.
I've done this a couple of times when DMEs have failed and it's a pretty simple process.
That was on M54s with a different DME.
Funnily enough, only yesterday I purchased the software to do the same with the DME on an N52 engine.
I'm off to hopefully sort out a failed DME swap over for someone on Monday.

 

[Limonge]

I'm not 100% certain, but I believe the only link between the engine and the EWS is the DME.
If you retain the same DME then apart from having to update it's map, it should still happily talk to the EWS.
However, if you fit the DME from the E86, you will have the correct map already, but you will need to tell the DME not to talk to the EWS.
I've done this a couple of times when DMEs have failed and it's a pretty simple process.
That was on M54s with a different DME.
Funnily enough, only yesterday I purchased the software to do the same with the DME on an N52 engine.
I'm off to hopefully sort out a failed DME swap over for someone on Monday.

Hello, the idea would be keeping the E85 DME and "just" install the engine from the E86. Is it easier just updating the map rather than disabling EWS? I've coded several modules, is it easy to flash the correct map with winKFP?

Thanks!

 

[enuff_zed]

I'm not 100% certain, but I believe the only link between the engine and the EWS is the DME.
If you retain the same DME then apart from having to update it's map, it should still happily talk to the EWS.
However, if you fit the DME from the E86, you will have the correct map already, but you will need to tell the DME not to talk to the EWS.
I've done this a couple of times when DMEs have failed and it's a pretty simple process.
That was on M54s with a different DME.
Funnily enough, only yesterday I purchased the software to do the same with the DME on an N52 engine.
I'm off to hopefully sort out a failed DME swap over for someone on Monday.

Hello, the idea would be keeping the E85 DME and "just" install the engine from the E86. Is it easier just updating the map rather than disabling EWS? I've coded several modules, is it easy to flash the correct map with winKFP?

Thanks!

Not sure, I've not done that.
I know fitting a new DME and disabling EWS is straightforward.
Hopefully someone else can advise on the mapping?