Re: ECU 2.4 Swap - Saab 900 Bulletin Board - Saabnet.com
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Re: ECU 2.4 Swap
Posted by Hans (more from Hans) on Thu, 4 Oct 2007 18:22:43
In Reply to: ECU 2.4 Swap, PaulM, Thu, 4 Oct 2007 14:51:34
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Do you mean 2.4.2, not 2.4.1, as no c900 that I'm aware of ever had the latter.
Or maybe you're talking about a Volvo 2.4.1?? If so, then you *may* be able to use it if its throttle sensor is the same 2-position switch as 2.4, not a potentiometer (smaller switch), and you swap in the Volvo's air mass meter. You might even have to swap in the idle control valve, too. You'd also need to find out what kind of tach signal it gets. IIRC, at some point, Volvo moved away from the Hall sensor stuff, so the signal may be different.
Meanwhile, A 2.4 box will not exchange with a Saab c900 or 9000 2.4.2 box: the idle control valve, air mass meter, and throttle switch are different. You don't say, but just to be sure, for a Turbo car, don't swap in a non-turbo ECU.
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