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adx for Marelli P8 (Lancia, Cossworth, Fiat)

 
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rob



Joined: 25 Mar 2007
Posts: 15

PostPosted: Mon Jul 19, 2010 8:43 am    Post subject: adx for Marelli P8 (Lancia, Cossworth, Fiat) Reply with quote

Anybody tried to make an adx for Tuner Pro v5 for the Marelli P8 ECU from Lancia Delta or Fiat Coupe 16v?
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revlimit



Joined: 19 Mar 2009
Posts: 201

PostPosted: Mon Jul 19, 2010 7:18 pm    Post subject: Reply with quote

no
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rob



Joined: 25 Mar 2007
Posts: 15

PostPosted: Tue Jul 20, 2010 7:18 am    Post subject: Reply with quote

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
TunerPro Author


Joined: 19 Mar 2003
Posts: 1780

PostPosted: Tue Jul 20, 2010 8:26 pm    Post subject: Reply with quote

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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rob



Joined: 25 Mar 2007
Posts: 15

PostPosted: Thu Jul 22, 2010 4:21 am    Post subject: Reply with quote

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
TunerPro Author


Joined: 19 Mar 2003
Posts: 1780

PostPosted: Thu Jul 22, 2010 7:05 am    Post subject: Reply with quote

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.
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Last edited by Mangus on Thu Jul 22, 2010 9:30 pm; edited 1 time in total
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hnracing



Joined: 30 May 2010
Posts: 23

PostPosted: Thu Jul 22, 2010 8:54 pm    Post subject: Reply with quote

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.
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rob



Joined: 25 Mar 2007
Posts: 15

PostPosted: Fri Jul 23, 2010 12:34 am    Post subject: Reply with quote

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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