Re: [alfa] More Motronic secrets!

["Dean W. Cains" <dwc@xxxxxx>]

Hi John:

The US Spider's from '82 thru '89 had the Bosch L-Jet, with Motronic 
Spider's not showing up here until '90 (thru '94).  I don't think the 
situation was any different in other parts of the world, was it?  As such, 
the FI computer (analog) and ignition computer (digital) are two separate 
pieces.   I'd be glad to pop the rear deck in my '87 Spider to answer your 
question, but before I do, are we talking about the same systems?

Regards,

Dean
Lutz, FL
'74 & '87 Spider Veloce's


At 02:24 PM 5/7/2004, you wrote:

> Date: Fri, 7 May 2004 11:24:20 +0200
> From: "John Fielding" <johnf@domain.elided>
> Subject: [alfa] More Motronic secrets!
>
> Mr. Bosch will probably get a bit upset by this disclosure, but here 
> goes.  It is covered
> in their service manual for the Alfa Romeo Alfetta/Spider using the early 
> Motronic ECU.
> This would be circa 1984 for Euro cars and about 1985 onwards for NA vehicles.
>
> For those of you running the Motronic you might care to take a look inside 
> the ECU harness
> connector to see if pin # 10 and pin # 5 are connected together.  In the 
> Swiss version the
> two pins are linked.  This retards the ignition timing to meet their emissions
> specification.  The removal of the link allows more ignition advance 
> across the rpm range.
>
> To open the harness connector, remove the nylon tie-strap where the 
> harness enters the
> connector and slide back the pvc sheath.
> Remove the small self-tapping screw holding the outer shell in 
> place.  Slide the
> shell off until the back of the connector is exposed.
>
> Any American owners who take a peek, please let me know what you find!
>
> Also, any one who can supply the Bosch part number for the ECU fitted to 
> the American
> Spider?  It should a number similar to 0261-200-xxx format and on a 
> sticker on the outside
> of the ECU box..
>
> John
> Durban
> South Africa
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