Machine monkey said:
They sell a plug and play kit for the e46 and ms43. This is the same unite with different pinnout connector block. I assume either like me the people that have brought them are not to worried. Or they have a soloution?
Yes, the e46 EWS is the same. I'm not concerned the car wont start, but I wonder if the immobilizer still works (or the factory class 3 alarm), and if not (the immobilizer that is, I think it has less influence on the factory alarm), how would the insurance company look at that? (thats of course different for each insurance).
But I'm glad you're the guinea pig :rofl:
I think they'll get the tuning right (your car will be more difficult than a supercharged car), but all the integration with the rest of the car is my concern, that it still keeps that factory feel and not that half the buttons and systems dont work anymore. Like the ESP/stability systems.
The only concern I have is the electronic power steering. Thats not your problem anymore but I dont know if that is tied in the DME with something else than standard can signals. Obviously speed, rpm etc will be sent over the canbus otherwise the instrument cluster wont work.
With deleting the MAF sensor you also delete the IAT sensor which will be a problem to the tuning (MAP has to have IAT), so you have to fit an IAT sensor somewhere.
(With the e85 the IAT sensor sits in the MAF and with the E46 the IAT sensor is seperate in the intake manifold)
The beauty of an aftermarket ecu is that the tuner has full control over all the systems. No hidden mappings that the tuner overlooked or that are simply not known and play up in real life situations (I had a few really awkward ones...). And that full control lets you tune more to the limit. So if your tuning works out really well they'll definately have another customer.
Maybe member Alun1976 also might be interested. I dont know if he already solved his issues, or if he even still has his Z but last thing I know is that he attempted a ms43 swap and had issues with the ews. But getting an aftermarket ecu and custom tune to a car will probably give a better result than a generic tune (although the skill of the tuner now becomes a variable)
And I also know a few z4 TS owners on the german Z forum that also have some inconsistencies from time to time, so they might be interested too. But I dont know how the german MOT works. Aftermarket ecu's are sometimes a problem when emission checks are done by obd2 instead of by a real life measurement (4 gas measure). Where I live it's still 4 gas measurement for my manufacture year (and I barely pass, my car is running quite rich, so lots of carbon monoxide)
