Re: Coupe Quattro starting problem

[Porsray@aol.com]

Bentley manual indicates a few possibilities, but all are associated with a
fault
code.  However, there is a catch-all phrase there, "If a complaint exists, 
fault not recognized by self-diagnosis".  The following are areas that could 
give symptoms you mentioned:

1) IDLE STABILIZER VALVE: Short circuit to ground in (N 71) or between
(N 71) and (J 192) -  "Engine might die when cold".  Could also result in
engine speed out of spec at normal temps.

2) COOLANT TEMP SENSOR: Cold starting diffculties at low temp, also
poor idle and acceleration during warmup.  manual sez moisture in connector
(G 62) could cause same effect.

3) AIR MASS SENSOR: Under certain circumstances, engine quits after
starting

Good luck!

Ray Calvo (porsray@aol.com)
1990 Coupe Quattro


In a message dated 96-10-28 17:01:27 EST, you write:

 A starting problem:
 
 I own a 1991 Coupe Quattro with 32,000 miles.  I am now having some
 difficulty when I try to start my car in cool weather after it has sat
 overnight.  

 Now when it is cool
 and I try to start my car after it has sat overnight it will turn over
 and start but then stall out.  Its as if the car just gets enough fuel
 to start, uses it all up then dies.  The next time I try to start the
 car its perfect, as if the first time primed the system.  
 
 Thanks
 
 
 Steve K.
  >>