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adx for Marelli P8 (Lancia, Cossworth, Fiat)
Posted: Mon Jul 19, 2010 8:43 am
by rob
Anybody tried to make an adx for Tuner Pro v5 for the Marelli P8 ECU from Lancia Delta or Fiat Coupe 16v?
Posted: Mon Jul 19, 2010 7:18 pm
by revlimit
no
Posted: Tue Jul 20, 2010 7:18 am
by rob
Ok, i started with an adx, 8bit values and lookup tables are working but i have some troubles with 16bit values. Anybody know how to connect two 8bit values from different requests?
To be more clear i have to send 1 to the ecu and get back the MSB for Engine period, then i have to send 2 (literally the value not the number which would be 0x32) and get LSB of Period. How to connect??
BTW i think i found a small bug in v5, i can't enter negative Values in the Lookup Table.
Posted: Tue Jul 20, 2010 8:26 pm
by Mangus
value 1 (most significant bit) = 8 bit value, equation = x
value 2 (least signifcant bit) = 8 bit value, equation = x
value 3 = 16 bit value, equation = a * 256 + b, where a is output from value 1 and b is the output from value 2.
Give it a shot.
Posted: Thu Jul 22, 2010 4:21 am
by rob
Ok. Got it so far, works like a charm. But there is one Problem left. TPS Conversion is:
if Degree < 30
Degree = (Data*0.1848)-1.41
else
Degree = (Data*0.7058)-90
How can i implement this??
I figure i can calculate both but how to compare?
Another Question i'd like to share this adx, where can i upload it?
Thanks for all the help and a really great piece of Software.
Posted: Thu Jul 22, 2010 7:05 am
by Mangus
A near future version of TunerPro will be able to do this. You can send me the ADX, along with the vehicle information that it applies to.
Posted: Thu Jul 22, 2010 8:54 pm
by hnracing
Use the lockuptable funtion.
Since it is two linear funtions that will do it.
Works for me.
Let me know if you find a solution for the adx conversion of the RPM not to show 229 at standstill.
Posted: Fri Jul 23, 2010 12:34 am
by rob
Thanks, it worked. I don't have a solution for thr RPM issue but my adx says 8000 rpm, which is the max rpm, without data.
I send my adx to mark, i am sure you can download it soon. Maybe you can send him yours too. We can compare results if can get a hold of your adx.