* URGENT * Bosch Motronic MP 1.7

Thu Aug 6 19:44:34 GMT 1998

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Hello boys,

We have a BIG problem with our race car. We can't get it running. We =
don't get sparks. When we take four plugs (4 cyl Cosworth engine) out of =
the engine and put them on top of the camshaft cover and start the =
engine we can see sparks on all of the four plugs. But if put four =
replacement plugs into engine, and leave the four originals on top of =
the cam cover, and start the engine we can not see any sparks. ??????? =
WHY ???????

The MP 1.7 uses two symmetrical sectors on the flywheel with inductive =
crank sensor. Plus a hall sensor in the distributor (with only one =
"window" on the rotating part). We have checked and double checked the =
sensor synchronization, wires, connectors and the sensors themselves. =
The sensor output looks OK on the oscilloscope. When we try to start the =
engine the fuel pumps and start running and injectors firing.=20

We are out of the ideas. We have now tried to solve this problem for =
almost four days. Any ideas are more than welcome as we should be racing =
on Saturday.

Please visit our teams web pages at: =
http://www.bookmark.fi/cosworth/index.html

Appreciate your help,

Joni Mikkola

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<META content=3Dtext/html;charset=3Diso-8859-1 =
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<META content=3D'"MSHTML 4.71.1712.3"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 size=3D2>Hello boys,</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>We have a BIG problem with our race =
car. We=20
can't get it running. We don't get sparks. When we take four plugs (4 =
cyl=20
Cosworth engine) out of the engine and put them on top of the camshaft =
cover and=20
start the engine we can see sparks on all of the four plugs. But if put =
four=20
replacement plugs into engine, and leave the four originals on top of =
the cam=20
cover, and start the engine we can not see any sparks. ??????? WHY=20
???????</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>The MP 1.7 uses two symmetrical =
sectors on the=20
flywheel with inductive crank sensor. Plus a hall sensor in the =
distributor=20
(with only one &quot;window&quot; on the rotating part). We have checked =
and=20
double checked the sensor <FONT color=3D#000000>synchronization</FONT>, =
wires,=20
connectors and the sensors themselves. The sensor output looks OK on the =
<FONT=20
color=3D#000000>oscilloscope</FONT>. When we try to start the engine the =
fuel=20
pumps and start running and injectors firing. </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>We are out of the ideas. We have now =
tried to=20
solve this problem for almost four days. Any ideas are more than welcome =
as we=20
should be racing on Saturday.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>Please visit our teams web pages at: =
<A=20
href=3D"http://www.bookmark.fi/cosworth/index.html">http://www.bookmark.f=
i/cosworth/index.html</A></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>Appreciate your help,</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Joni Mikkola</FONT></DIV></BODY></HTML>

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*** URGENT *** Bosch Motronic MP 1.7

* URGENT * Bosch Motronic MP 1.7