Return of the No-Start 4kq--Oh, Oh addendum

Chris Hall badcomrade at gmail.com
Sat Jun 18 15:08:32 EDT 2005


Brown in Audi's = Ground Wire.

I'd say if the wire got hot enough to melt the insulation off, you
first have to find out why it got so hot it melted...



On 6/18/05, Kneale Brownson <kneale at coslink.net> wrote:
> I managed to get the relay/fuse tray off all that jumble of wiring.  The
> wire with the insulation burned off had a brown covering.  It was connected
> to the tray through a connector at the position that's marked "31".  It
> goes immediately into a harness with a bunch of wires from adjacent
> positions in the tray through the first two connectors from the front.  I
> don't see any other burned wires from any of the connectors to the tray.
> None of the fuel pump relay slots in the tray is marked "31".  The relay
> itself has one leg marked "31" that goes into a slot in the tray marked "50".
> 
> Do I have to try to disassemble that harness to check the burned wires
> inside, or can I just replace the brown wire with another brown that goes
> from the tray to wherever the current one goes?  Can anyone tell me where
> that brown goes?
> 
> 
> At 12:32 PM 6/18/2005 -0400, Kneale Brownson wrote:
> >Someone reported earlier to me that I could put in "any" relay in the fuel
> >pump relay slot, so I went through my collection of about 15 relays from a
> >5ktq parts car and found one that has the same configuration of  plug ends,
> >although the blades for the big slots were slightly smaller.  When I
> >inserted it, I let a bunch of the smoke out of the wiring.  I hoisted the
> >tray up and can see a bare wire with the insulation burned off it that
> >looks like it comes from the area of the horn relay, not the fuel pump
> >relay.   How do you disengage the wire connectors for the various harnesses
> >from the bottom of the tray? Looks like I'll have to take off the tray in
> >order to search for more burned wires.
> >
> >At 11:20 AM 6/18/2005 -0400, you wrote:
> >>I jumpered the fuel pump relay today and the pump runs.  So I put the relay
> >>back in and the car started OK.  When I had similar experiences with my
> >>200q20v, I ended up having to replace the relay and then having the pump
> >>fail a few weeks later.  My surmise was that the pump going out caused the
> >>relay to fail.  Should I expect the same here?  Should I get all the pump
> >>"fixings" ala Huw's report on renewal of his system and prepare to replace
> >>everything on the fuel pump tray?  What relay can I use for the 4kq?  The
> >>contacts configuration on my spare 200 relay is different from the one on
> >>the 4kq.
> >>
> >>At 08:23 PM 6/17/2005 -0400, Kneale Brownson wrote:
> >>>The wife's 4kq that had the funky starter wiring and a no-start-when-hot
> >>>experience has been starting just fine ever since I replaced the funky
> >>>parts of the wiring.
> >>>
> >>>Today we had another no start event.  This time, while she was turning the
> >>>key, I had my hand on the fuel pump and could feel no activity.  Thing used
> >>>to Hum  (Not an Huw tune, I'm sure) quietly when running.  I can't find a
> >>>fuel pump relay like in the 5k/200 cars I've got.  Is there a fuel pump
> >>>relay?  Am I most likely looking at a new fuel pump?  It's very rusty
> >>>looking there.  What should I replace with the fuel pump while I'm at it?
> >>
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-- 
Chris Hall
badcomrade at gmail.com
"making girls cry since 1974"


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