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Old 02-17-2009, 09:42 PM
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Default P8 ECU - same as a automobile unit?

Hey all,

I was looking on ebay for a P8 ECU and found several automobile units:

Steuergerät Fiat Coupe 2.0 16V IAW 4Q4 bei eBay.de: Autoelektrik (endet 27.02.09 20:49:13 MEZ)

Part number is
IAW 4Q4 - IAW4Q4


Is that the same as the Ducati P8 ECU?
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Old 02-17-2009, 10:11 PM
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yea i beleave they are just with diff maps on them. i know ducati does share parts with fiat...look closely at the markings on the plug wires on your 748....mine said fiat also
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Old 02-18-2009, 07:19 AM
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Lancia too.
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Old 02-18-2009, 07:21 AM
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Thanks guys,

so the IAW 4Q4 is the same as the IAW 435 (Ducati) despite the different model classifications?

If someone knowledgeable says yes I´m running to ebay and buy one, because I am a cheap bastard

Here is a Lancia one:

Steuergerät Lancia Dedra 2,0 16V 102KW Bj.95 IAW 4Q6 bei eBay.de: Autoelektrik (endet 26.02.09 12:28:28 MEZ)



The other Lancia ECU´s looked different.
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Old 02-18-2009, 05:24 PM
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I tried a P8 sold by Elderbrock for their FI engine kit. Doesn't work with Ducati's chip. Be careful.
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Old 02-18-2009, 05:39 PM
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i would be woried about the amount of injector drivers and coil devices, would think they would be somewhat diferent
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Old 02-18-2009, 06:21 PM
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Hi Ben,

I own a 97' Fiat Cinquecento and guess what: it has a MM ECU in it which looks exactly like a 1.6M part of a 748/916/996. But it also has a different classification.
I don't think it comes down to just software. MM does not care about the chip you later put in, when they build and sell their product!!
I would not cheat with that!!

BTW: P8's are supposed to come around ~150,- Euros on a good day.....why gambling for ~50,- bucks?? Be patient!!!
And: a P8 does not fit your 748!!


Greetz,

Dali!


PS: The Cinque has also AMP-connectors AND (VERY interesting!!) a TPS wich looks EXACTLY like the 998 one!!!!
I'm gonna try to get me one and check dat out!!!!
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Old 02-18-2009, 06:23 PM
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Hm, no good. I thought I could get a cheap ECU.
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Old 02-18-2009, 08:16 PM
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I dunno, I have the P8 from a 1998 Laverda Ghost in my 1990 851. Has a different P/N as well. Installed the correct chip and away I went. Still going.
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Old 02-18-2009, 09:47 PM
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Quote:
Originally Posted by Connader View Post
Hi Ben,

I own a 97' Fiat Cinquecento and guess what: it has a MM ECU in it which looks exactly like a 1.6M part of a 748/916/996. But it also has a different classification.

PS: The Cinque has also AMP-connectors AND (VERY interesting!!) a TPS wich looks EXACTLY like the 998 one!!!!
I'm gonna try to get me one and check dat out!!!!
The 16M is strictly for motorcycles. You can find it in Ducatis, Guzzis, MV Agusta and maybe some more. There is a 16F unit for cars that looks the same but are a different thing. Good though if you're need a box for a MyECU, as the box and the connector is the same.

The 8P unit is used on both motorcycles and cars. Fiat and Lancia was mentioned. You also find it in the Ford Sierra Cosworth. I have also heard a roumor that it's also fitted in some Ferrari.


About the TPS: I got a TPS from a Fiat and it has the same form factor as the ones on the Ducatis, but it rotates in the other direction, so take a close look.
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Old 02-19-2009, 01:29 AM
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If you need a P8 I think I know where you can get one. I sold an extra unit I had with my 916 to a friend of mine and he might be willing to part with it, not cheap though.
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Old 02-19-2009, 02:27 AM
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In Ian Falloon's excellent book, Desmoquattro Performance Handbook, there is a section on the P8.

There were two models used on Ducatis, the IAW 435 and IAW 442

The IAW 442 was used only on the 1999 996 Racing model. Everything else used the IAW 435.

The P8 uses a Motorola 68HC11 processor (CPU chip)
Freescale 68HC11 - Wikipedia, the free encyclopedia
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Old 02-19-2009, 04:30 AM
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Well somone seems to think they are worth their weight in gold

eBay.com.sg: Ducati Corse Magneti Marelli P8 Racing ECU - 28640092A (item 390028937821 end time Mar 07, 2009 06:28:58 SGT)

eBay.com.sg: Ducati 851 Weber IAW 043 ECU - 28610071A (item 390028938250 end time Mar 07, 2009 06:30:59 SGT)
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Old 02-19-2009, 12:11 PM
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The Corse IAW442 is the same as those used on Aston-Martin's of the epoch. They had gold-plated connectors and some higher-end electronics in them, from memory.
We used to buy the Aston Martin ones as spares, because they were a fraction of the price, yet exactly the same part...
Big difference is the ability to drive the third injector the 996 R and early RS used, before they switched to the full all-singing, all dancing Marelli "Red-box" kit in 2001.
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Old 02-19-2009, 03:37 PM
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Quote:
The 16M is strictly for motorcycles. You can find it in Ducatis, Guzzis, MV Agusta and maybe some more. There is a 16F unit for cars that looks the same but are a different thing.
Hi Redtop,

this exactly what I said:
Quote:
it has a MM ECU in it which looks exactly like a 1.6M
Don't know about the facts of the P8 though.


Quote:
About the TPS: I got a TPS from a Fiat and it has the same form factor as the ones on the Ducatis, but it rotates in the other direction, so take a close look.
But this even sounds better, if just the resistor and his curve is like the 998's: to get a 998-TPS fixed for a 999 TB you had to machine the second TB to fit the 998 TPS (because of the direction of the 999-TPS rotation was different then the 998's).
That has alwys been a tough job, machinig the axis of the second body.
This way you'll probably have to just get it screwed onto the TB...!!??
Still some luck needed for the TPS of the Cinque having the right Resistor-curve!!!

Thanx, great Info!!


Sorry for hijacking the thread....I'm gone!!
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