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View Full Version : Rev Limiter Factor Motronic 1.3



AlexG40
30th October, 2014, 09:35 PM
Hello guys

I am looking the rev limiter factor for this old motronic 1.3 ecu.
I have tried all ready 912500/X but it makes no sense. Does anyone has any idea?
Just to help you rev limiter 1 is at 62c4 and number 2 is at 62F0284034

biela
31st October, 2014, 11:30 AM
Hello

Could be 6750000/X in 16 bit LOHI?
I think it is M1.1 ECU.

Vasily.U
31st October, 2014, 12:00 PM
Hello guys

I am looking the rev limiter factor for this old motronic 1.3 ecu.
I have tried all ready 912500/X but it makes no sense. Does anyone has any idea?
Just to help you rev limiter 1 is at 62c4 and number 2 is at 62F0284034
ECM Titaniun show factor 6750000 .
284091

AlexG40
31st October, 2014, 12:41 PM
I think that it is wrong Vasily

easytech
31st October, 2014, 01:06 PM
It is quite easy multiply the rev limiter value (320 usually around 6500RPM) with F4h(244), you get 1586000 this is the scaling factor.

Vasily.U
31st October, 2014, 02:18 PM
I think that it is wrong Vasily
Why wrong?
284107284108

AlexG40
31st October, 2014, 06:27 PM
@Vasily: The result of this factor is 27663.

@easytech: It seems that that its the correct order.

If somebody knows the correct answear and its 100 sure, please post

Vasily.U
31st October, 2014, 08:54 PM
@Vasily: The result of this factor is 27663.
27664 in 8bit mode, but need 16bit LoHi
284149
For example rev.limiter 7500
284152

AlexG40
31st October, 2014, 10:41 PM
Oh i see Vasily.
Unfortunately i will tune this with tuner pro and i can't figure a way to do it LoHi... Do you have any ideas?

Vasily.U
31st October, 2014, 11:44 PM
I'm not use tuner pro, but i think like this
http://www.digital-kaos.co.uk/forums/attachment.php?attachmentid=284210&stc=1