dico mis fire

[attar]

Hello everyone ,
My 97 disco has muti misfire on all cylinders(po300) i have replaced all coils ,wires and plugs but to no help.At 50mph it slows down with very little power ,it also has a code for cam position sensor,will this have be the problem or a cran sensor.Some one told me could possible be alternator not given right voltage to active the injectors.
please help
alie

 

[joey]

Crank sensor will not allow it to start. Cam sensor may be the issue, or the VSS is bad. When it happens at 50mph, take it from drive to 3rd. If the issue goes away it is the VSS.

 

[attar]

missfire

Thanks joey ,i will try this weekend and post you on outcome.
alie