adx for Marelli P8 (Lancia, Cossworth, Fiat)

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rob
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Joined: Sun Mar 25, 2007 9:54 am

adx for Marelli P8 (Lancia, Cossworth, Fiat)

Post by rob »

Anybody tried to make an adx for Tuner Pro v5 for the Marelli P8 ECU from Lancia Delta or Fiat Coupe 16v?
revlimit
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Joined: Thu Mar 19, 2009 6:41 pm

Post by revlimit »

no
rob
Posts: 16
Joined: Sun Mar 25, 2007 9:54 am

Post 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.
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Mangus
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Post 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.
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1989 Trans Am
rob
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Post 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.
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Mangus
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Post 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.
Last edited by Mangus on Thu Jul 22, 2010 9:30 pm, edited 1 time in total.
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hnracing
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Post 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.
rob
Posts: 16
Joined: Sun Mar 25, 2007 9:54 am

Post 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.
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