Compatibility among various MED 442, 446, 500 etc

discussions specific to the 906 Paso
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ducapaso
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Compatibility among various MED 442, 446, 500 etc

Post by ducapaso »

I was told that the difference among various digiplex 2S ECU is the different timing setup .
Does any of you happen to find more ifos about that?
have a nice ride, Nicola

Black "DUKE" 751582
ex...Red "smooth" 753349 :-(
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micklm
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Re: Compatibility among various MED 442, 446, 500 etc

Post by micklm »

All I’ve ever found, via Fiat forums is the MED433 advance curves:

Image

Image

This appears to have a lower ceiling for degrees (and lower max rpm) compared to the advance curves in the 906 service manual for the Digiplex S2 MED442A, as you’d expect for a Fiat Uno compared to a 906! Different vacuum steps as well.

Image
906 Paso 1989 w/ 17in wheels :)
Tamburinifan
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Re: Compatibility among various MED 442, 446, 500 etc

Post by Tamburinifan »

FAQ material. :thumbup:
Gert

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paso750
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Re: Compatibility among various MED 442, 446, 500 etc

Post by paso750 »

FAQ material
What is? The chart is in the wsm and 433 chart is one of many which is not relevant for the 906.

G.
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Re: Compatibility among various MED 442, 446, 500 etc

Post by micklm »

G - agree it’s not that useful. Posted more as a caution of what not to buy. And not everyone might have seen the 906 one in the workshop manual to know what to look for when checking other models. Thought it might help get the ball rolling!
906 Paso 1989 w/ 17in wheels :)
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paso750
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Re: Compatibility among various MED 442, 446, 500 etc

Post by paso750 »

I wasn't criticising! Every info about what or why something won't work is more than welcome. This info is as valuable as info about what will work. :thumbup: It's just not for the FAQs.
Tamburinifan
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Re: Compatibility among various MED 442, 446, 500 etc

Post by Tamburinifan »

Aha, the last pic is in manual, sorry.
Gert

907 I.E. -91
M900 -97
MTS 1100s -07
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