*** URGENT *** Bosch Motronic MP 1.7

[Walter Petermann]

One of your hall sensors might be set too far away. It could be generating
enough signal when the motor is cranking fast (no plugs), but falling
just short when cranking speed is lower. Try moving one or the other 
closer. Also, I second the low battery voltage suggestion.

 Walter

> Joni wrote:
> 
> 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 ???????
> 
...