[Vwdiesel] No glow ....

Roger Brown r.c.brown at ieee.org
Tue Oct 4 22:33:20 EDT 2005

Derek wrote:
> Nope no AC and there is no temp sensor on the head itself.  I have two and 
> they are located in the flange that attaches to the cylinder head ( slightly 
> to the right of the injector lines )
> Anyway, ETKA told me what sensor was for the GP's.  I confirmed this with my 
> VW mechanic and got one today.  Didn't help anything at all ...  guess it 
> must be the module.  As far as locating it goes, it would appear to be well 
> hidden.  I traced some of the wires and they went under the battery tray.  I 
> re-located the line and it appears to go into the firewall.  My guess is it 
> is somewhere behind the dash, but that's a moot point.  I don't know what 
> one of these are worth, but its more than likely more than I want to spend.

The GP relay module is often either plugged onto the side of the main fuse block or is a separate unit.  Easy to find under the 
dash, it'll have two honking big wires running to it.  You can see my web page for some typical part numbers:


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