hi guys
just got a z4 ecu for my 240ps 93 import
open the case and found theres no extra chip 28 pin socket . is this normal?
ive got some numbers of the chips: a12-212-705,102 511100,m37791e4tj.thats the chip in the middle.
the small chip above it is:a12-212-801
the other chip to the left is:a19-257-025
its also got a sticker on the yellow socket 000-d17.

i have a u8 ecu in at the moment.
what fuel should i run the z4 ecu on ??and what gains would i have over the
u8 ecu?? if its a proper z4 ecu?
thanks help!
just making sure before i plug it in...

 

The z4 can be run on super unleaded (97+ron) but i run mine on tescos 99ron.



This is my z4s internals.
I have a decat as well and when giving it the beans through each gear you can feel the extra amount of boost (the z4 holds the boost and has a better map)

 

i went from a u8 to a z4 and i noticed the difference straight away, boosts more too. Will be selling soon as have an apexi now, my boost went to .8 to .9

 

if your selling the u8 give me a shout.

 

PM for you..

 

non of the import ecu's come with that socket at all. only the uk ones have it.
but you are able to solder one in very eas

the z4 is 12.73 psi where as most of the other are only 11.47 psi
its got a prodrive type mape

 

Do you mean the plastic socket in the bottom right because thats how i bought my z4.
The z4 is the base of the prodrive map not the other way round

 

The only Jap ECU that come with a socket are SB and 7K.

If a Z4 had a socket then it was running a chip at some point. Also the standard sockets are normally covered with a clear plastic cover and the socket has circular goldern inner contacts rather then square sprung contacts