promax_motorsport

Hi All,

I'm trying to locate the Rev Limit value on the LH chip (928S2 / S). This is for the 16 valve engine. Anybody know the hex address and the hex value? (6400rpm is the decimal value I believe).

Any help very gratefully received.

Regards,
Andrew

Milton Keynes, UK
'93 928GT Guards Red

Chris

Good luck, I know where it is on the 87+ but no idea on the earlier cars. On the S4 it is a 16 bit hex value.

You asked J Speake ?

Chris

John Speake

Hi Chris,
Yes, already asked me, I've never gone into this code, only the '87 and later....

Done anymore on your LH project ?

(Sorry Andrew, for grabbing your thread !)

Lorenfb

"On the S4 it is a 16 bit hex value.: - Chris -

Actually, that is stored as two 8 bit bytes since the LH ECM uses a XK by 8 EPROM.
An assembler or a disassembler, e.g. DOS DEBUG, will display that value as HEX.

Chris

Now that is just getting picky !! Actually now my memory is coming back it is just an 8 bit number.

Not that is helps the original thread topic.

John I wish I had time to go back and play with it but sounds like you have made some great progress recently anyway.

Chris

John Speake

Hi Chris,
The EZK is next !

Regards

promax_motorsport

Hi All,

Anybody know the hex address for the 6400 RPM limit on the LH ECU (928S/S2 16v). Many thanks.

Regards,
Andrew
928GT Guards Red