Motronic 1.5 chip help wanted

Sun Sep 19 19:19:52 GMT 1999

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I am trying to disassemble a Motronic M1.5 ECU from a 1990 Vauxhall =
Cavalier.

The ECU is based around an 80515 processor.

The disassembled code doesn't make much sense. I think it may have =
something to do with address translations between the 80515 and the =
27256 eprom. There is a 68 pin chip made by Harris which I think may be =
involved. Does anybody know anything about this ECU ?

I would also appreciate help in identifying the chips in the ECU, in =
particular the injector drivers.

If anybody has any M1.5 bin files I'd appreciate a copy to look at.

Alan Smith

=20

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<DIV><FONT size=3D2>I am trying to disassemble a Motronic M1.5 ECU from =
a 1990=20
Vauxhall&nbsp;Cavalier.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>The ECU is based around an 80515 =
processor.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>The&nbsp;disassembled code doesn't make much sense.=20
I&nbsp;think it may have something to do with address translations =
between the=20
80515 and the 27256&nbsp;eprom. There is a 68 pin chip made by Harris =
which I=20
think may be involved. Does anybody know anything about this ECU =
?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>I would also appreciate help in identifying the =
chips in the=20
ECU, in particular the injector drivers.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>If anybody has any M1.5 bin files I'd appreciate a =
copy to=20
look at.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>Alan Smith</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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