ECU-remapping

[fabianyee]

first of all it is not possible to just 'switch' ECUs

ECU contains data of your car including the mileage...so when your ECU mileage and the dashboard mileage doesn't match, you get an error of some sort and BMW and your insurance company may consider it mileage tampering!

2nd of all, why would you change your ECU like that? Your ECU is for your car, the ECU of a different car is for that car. They have been programmed specifically for that car model and not yours!

Also why would you upgrade from b20 to b25 when you can get aftermarket manifold and exhaust made for your exact model that is much more effective and maybe cheaper.

the M20 ECUs are not that advanced...

 

[metalrizca]

DO: Tune your ECU, powerchip etc.
DON'T: Swap out your ECU for a different one.

DO: Get aftermarket exhaust manifold.
DON'T: Swap from different model.

hmmn..
its make sense..
thanks..

other opinion..?

 

[Zoggee]

hmmn..

andai kata yek..
if only..



first scenario..
i drive m20b20..
then i change the ecu to m20b25..
can mr. sifu(s) tell me, what happen then..?

p/s:
just changing the ecu..
nothing else..



second scenario..
im drive m20b20..
i change ecu (m20b25)..
also change the intake and exhaust manifold (m20b25)..
change the throttle body (m20b25)..

the question,
enough parts changing..?
or need else..?



thanks in advance..

Well I suggest you go study Automotive engineering . Then you'll know better...cos I oso never really know.

oh better still....why not ask BMW AG themself. Can they asnwer our prayers ah???

 

[metalrizca]

Well I suggest you go study Automotive engineering . Then you'll know better...cos I oso never really know.

he he..
what if i am automotive mechanical engineering student..?
in auto mech eng syllabus / course of study, takde blaja modified..

 

[Zoggee]

he he..
what if i am automotive mechanical engineering student..?
in auto mech eng syllabus / course of study, takde blaja modified..

well pls study more la...so that you can help us.

 

[metalrizca]

your opinion bro Zoggee..?
better change the parts to m20b25 (ecu, TB, in / ex manifold)
or check for aftermarket..?
or modi aje yang ada tu..