MSS54HP required for MAP?

[D-O]

Wow! THANK YOU for going to so much effort and providing so much detail. Looks like I now have an excellent plan for the wiring portion of this project.

[D-O]

Because I will have my original DME upgraded to HP am I correct that I will NOT need the EWS delete and that the VIN in the DME will remain matched to my vehicle?

[S54B32]

Because I will have my original DME upgraded to HP am I correct that I will NOT need the EWS delete and that the VIN in the DME will remain matched to my vehicle?

who ever will do the bench flash of the ECU, just tell them to leave the ISN blank like on a new ECU from factory. I do that by default on every conversion, but maybe worth to mention who ever will do yours.
That way you can sync it ONE time with your EWS via INPA and the immobilizer will be working as before.

[ramadox]

Either works. Bryson can remote flash the full CSL FW if needed.

You just need to make sure they return your DME to you with something on it. The HW conversion involves physically replacing the ROM with new blank chips, which means that the DME will need to be bench flashed before it can communicate with the typical flashing tools.

ive decided to buy a MSS54HP ECU on ebay. Can HTE flash the csl fw on it for me?

[heinzboehmer]

ive decided to buy a MSS54HP ECU on ebay. Can HTE flash the csl fw on it for me?

Sounds like a question for Hassan

[D-O]

who ever will do the bench flash of the ECU, just tell them to leave the ISN blank like on a new ECU from factory. I do that by default on every conversion, but maybe worth to mention who ever will do yours.
That way you can sync it ONE time with your EWS via INPA and the immobilizer will be working as before.

Many thanks. I guess I am finally going to have to learn to use INPA...

[D-O]

Kassel says they can do the conversion and flash in 24 hours. Is there any reason I should not use Kassel? Not really finding other options, but perhaps you guys are aware of other options.

Can anyone point me to a DIY on EWS sync?

[Bry5on]

Kassel says they can do the conversion and flash in 24 hours. Is there any reason I should not use Kassel? Not really finding other options, but perhaps you guys are aware of other options.

Can anyone point me to a DIY on EWS sync?

It’s so much easier to just delete EWS! Your car is still protected from being stolen by the EWS system even if it’s disabled in the DME. Might save you some effort

[ac427]

karter16 Very nice loom.

[D-O]

It’s so much easier to just delete EWS! Your car is still protected from being stolen by the EWS system even if it’s disabled in the DME. Might save you some effort

It seems this would be the wise course of action. If I understand correctly, the key would still need to match up with the EWS module in this scenario?

[discoelk]

That is correct. Shoot me a PM if you need local help with this. I DIY'd everything when I did my airbox, but I bought a HP ecu rather than converting my original one.

[George Hill]

EWS has two safety's:

• Key to EWS which blocks the engine from cranking
• DME to EWS which blocks the engine from starting (while cranking).

If you disable DME to EWS you still have the Key to EWS to prevent cranking. This does mean though that if the DME is powered (key on) and it detects engine RPM it will start. IE push starting or physically bypassing the EWS module all together.

You would still have the steering wheel locked so they'd have to break that too, but the likely hood of someone going to all of those lengths to steal your car is likely low and if they are going to do all of that then they likely would be equally as committed to just flat bed it away.

[D-O]

That is correct. Shoot me a PM if you need local help with this. I DIY'd everything when I did my airbox, but I bought a HP ecu rather than converting my original one.

Thanks for the offer. I may take you up on it.

Did you BDM your DME, or did you use MpowerE36's software via obd?

[discoelk]

I did everything over OBD. I believe I used MSSflasher. I had issues syncing the EWS to the ECU so I quickly gave up and delete it.

[heinzboehmer]

EWS can be finicky to sync on CSL FW using INPA. I don't even try anymore, I just fire up DIS and do it with that. Works every time.