[s-cars] Reasons your UrS4 won't start

[Tom Green]

It is all in here so there is no reason for me to repeat any of it.  Forgie must still be napping after celebrating the US Thanksgiving dinner.  This is part of a reminder Dave sends around every month or so.  Archive the next one and you won’t be so clueless.

I will only add that the car is a modern computer controlled vehicle.  The Motronic ECU not only controls the engine operation, it stores fault codes that can be very helpful in diagnosing problems.  This is the first step in troubleshooting any engine problem.  You will probably only find a clue for where to start your diagnosis rather than specific parts that have failed, but it is always the place to start.  The absence of a code can be as big a clue as a specific code.

http://forums.quattroworld.com/s4s6/msgs/210191.phtml <http://forums.quattroworld.com/s4s6/msgs/210191.phtml>


> On Friday, November 25, 2016, at 4:19 PM,Gary Meier <garymeier65 at gmail.com> wrote:
> 
> The car sat for about a month while I recovered from back surgery; now it
> cranks but won't fire/start. I had a similar problem about a year ago. At
> that time I replaced the fuel pimp. crank position sensor and the cam
> position sensor. When testing the system components I get a reading of 960
> ohms on the crank position sensor and the RPM sensor. Tests for the cam
> position sensor indicate that it is functioning properly. Does anyone have
> a way to test the fuel pump relay and other fuel supply components without
> use of the VW special tools; or do you have any suggesti0ons on what to
> check.
> Gary Meier