[Shotimes] SHO left me stranded... 50 yards from a Ford dealer

[Kevin & Cheryl Airth]

3 coils so 3 different possibilities. I thought it was just for starting too
but many people have had stumbling or rough running after starting with a
bad cam sensor? If anyone could explain further it would be a great help.
Since the relation of the crank and cam is fixed mechanically there is no
reason for a cam sensor at all after starting? The PCM must use or look at
the output of the cam sensor while the engine is running?
Anybody know?
.
.



> My understanding of the cam sensor is that it is used
> for starting. If it is bad, the engine can go through
> as many as 6? cycles before it starts with backed down
> timing. HOWEVER-once running, it may run poorly and
> cause issues such as stalling, loss of power, etc. I
> think this is why sometimes its difficult to tell if
> its a crank sensor issue or a cam sensor issue. A bad
> crank sensor usually causes stalling as well.
>
> This is a combination of theory, personal experience
> and my understanding of what I have read here on the
> lists and different books.
>
> .02
>
> Ian
> --- Barry Hayes <Barry@kingcon.com> wrote:
> > The cam sensor is primarily for setting the timing
> > at startup, but when
> > mine went it would also do the bucking bit on the
> > highway with a ce
> > light on. Also, it would sometimes make a very odd
> > noise trying but
> > failing to start and the tach would act weird.
> > Changing the sensor
> > cured it.
> > Barry Hayes