[s-cars] G28 engine speed sensor

Wed May 10 20:55:52 EDT 2006

Robert,

Thanks, however the fuse is fine and I have done the 1.8 conversion.

Bueler?

On 5/10/06, Robert Myers <robert at s-cars.org> wrote:
>
>  No spark, huh?  The immediate response is to suggest checking the fuse for
> the ECU.  It is located right at the ECU, just above it.  You will have to
> pull the carpet back to get to it.  The process is essentially the same as
> the process to pull the ECU as described on my web site.
>
>  http://chips-ur-s.com/Swap2.html
>
>  You don't need to pull the ECU but the fuse is in a holder above the ECU
> box.  Now, if that fuse is blown replace it and try to start the engine
> again.  If the fuse blows again start looking for a dead short, probably
> inside one of the coils.  If you find it there the remedy is to replace the
> coil or, better yet, upgrade the ignition system to use the 1.8t coils as
> described by Dave Forgie.  034motorsport.com has a plug and play kit for
> this.
>
>
>  At 08:19 PM 5/10/2006 -0400, you wrote:
>
>
>
> Thanks to all for your replies,
>
>  Here is some new found input.  After conducting some recommended
>  diagnostics I have found that fuel is reaching the rail, but could not
>  come up with any spark.
>
>  I guess this would lead to lots of wire testing.   Ugh, not my forte'.
>
>  Also the plugs are new and codes have been pulled after cranking for
>  5+ seconds with ignition left in the on position.
>
>  So... what are the most common causes of no spark?
>
>  All thoughts appreciated,
>
>  Ron Whiton
>
>  On 5/10/06, tufty <tuftywxm at hotmail.com> wrote:
>  > Okay Ron the CPS code will always be there if the car has not been
>  > turned over for about 5 seconds and then not switched off. If you are
>  > just switching the ignition on and then checking for fault codes you
>  > will have the CPS code......As you know you need basically 3 things to
>  > start an engine fuel, spark and compression...have you loosened a fuel
>  > line to make sure you have flow and pressure? Have you pulled the coils
>  > and checked for spark? If these 2 are present I would bet money that you
>  > have something as simple as fouled plugs....the F5DPOR plugs do not like
>  > to get wet at all and if you had something as simple as a weak battery
>  > it would cause this....
>  >
>  >
>  > Dave Jones
>  >
>  > -----Original Message-----
>  > From: s-car-list-bounces at audifans.com
>  > [mailto:s-car-list-bounces at audifans.com] On Behalf Of
> Ronald Whiton
>  > Sent: Tuesday, May 09, 2006 7:04 PM
>  > To: chris chambers; s-car-list at audifans.com
>  > Subject: Re: [s-cars] G28 engine speed sensor
>  >
>  > 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
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