[Vwdiesel] Dying Glow Plug Relays???

[LBaird119@aol.com]

Can't see as harness corrosion would do that because:
Relay resistance is near zero through switched power to GP's which
have a  combined resistance of 1/4  ohm ish. So any corrosion
increases the resistance and increases the mismatch from battery
supply internal resistance and so decreases power transfer...
Can it be that your voltage regulation is running too high and
overloading the relay?



  Sounds like the same problem Dad's Passat has had since about 6 months 
after he got it.  Don't remember the code but the "typical" cause of it is a 
mismatch in resistance between the two glow plug circuits, so I was told.
Matches what Matt had.  The comparator circuit seems to be a tad 
oversensitive.
     Loren