[s-cars] G28 engine speed sensor

[chris chambers]

Ron,

Well you've thrown a couple more variables into the mix.
I recommend checking for fuel pressure and then confirm your
ignition system is working.

Fuel pressure check can be done by attaching a FP gauge on the
fuel rail. Alternately you could easily check and see if the plugs
are getting wet from fuel.

For the ignition I would pull the coil pack off, flip it over, and
use a spark plug tester to confirm there is a strong spark for each
cylinder.


Good luck
Chris





--- Ronald Whiton <dooksniffer at gmail.com> wrote:

> Fuel pump is new and works.
> FP relay may be bad but the car still will not start while
> "jumpering" relay
> I have fuel.  I had to replace pump with 1/2 full (half empty at this
> point) tank
> Michelin Man and other hoses upgraded to samco (most recent gb).
> It ran fine before no-start.  couple of CEL flashes and power cut
> outs
> before failure (which          led me to CPS replacement)
> 
> Ron
> 
> 
> On 5/9/06, Ronald Whiton <dooksniffer at gmail.com> wrote:
> > Chris and list,
> >
> > The CPS is new.  When no-start began I got CPS and G28 codes.  I
> > replaced the CPS and still no start.  Swapped ECUs with John B. at
> > Woodlawn in Philly and his car started fine.
> >
> > Ron Whiton
> >
> > On 5/9/06, chris chambers <fastscirocco_2000 at yahoo.com> wrote:
> > > Ron,
> > >
> > > Sounds like your CPS sensor has failed,
> > > When the CPS sensor goes bad you can't start the car and
> > > it won't flash a code.
> > >
> > > HTH
> > > Chris
> > >
> > >
> > > --- Ronald Whiton <dooksniffer at gmail.com> wrote:
> > >
> > > > Good eve all,
> > > >
> > > > Still not starting and this is the only code I am getting.
> > > >
> > > > 4A0 907 551 C
> > > >
> > > > 00513 Engine speed sensor (G28)
> > > > No Signal
> > > >
> > > > I have read many posts in the archives mentioning that this
> code
> > > > always presents itself when the engine will not fire (for any
> > > > reason).
> > > >   I can't recall ever reading about it here, but has anyone had
> this
> > > > bugger fail causing a no-start?
> > > >
> > > > CPS=>NEW (no more code for that)
> > > > ECU=>swapped and works fine
> > > > New plugs and 1.8 conversion (didn't start before conversion
> either)
> > > >
> > > > thoughts?
> > > >
> > > > Ron Whiton
> > > > _______________________________________________
> > > > S-CAR-List mailing list
> > > > S-CAR-List at audifans.com
> > > > http://www.audifans.com/mailman/listinfo/s-car-list
> > > >
> > >
> > >
> > > Make April 15th just another day http://www.fairtax.org
> > >
> > >
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Tired of spam?  Yahoo! Mail has the best spam protection around
> > > http://mail.yahoo.com
> > >
> >
> 


Make April 15th just another day http://www.fairtax.org


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com