Fuel Pump Relay question

[Jim Jordan]

Hi Chris,

Have you looked at the Hall Sensor?  I don't recall it being mentioned.
They used to be rather fragile and easy to break making their function
intermittent.

What is strange is that you were able to accumulate enough raw fuel in the
muffler area to cause a backfire.  Have you tried unplugging the cold start
valve?  (if there is one).

One more thought.  The next time your engine stalls, unplug the fuel pump
relay entirely and turn over the engine for about a minute.  Do it ~15
seconds on, ~15 seconds off to keep from overheating the starter motor.  See
if that clears your engine, and if it does, it means that your fuel delivery
is faulty, injectors, air flow, all cold start valves.

It might be dumb to ask, but have you noticed that you're using a lot more
fuel than before the problem started? 

Perhaps it's time to have someone else take a look;  a fresh eye often sees
things that we've overlooked.

Cheers!

Jim Jordan


>  -----Original Message-----
>  From: Kent McLean [mailto:kentmclean at mindspring.com] 
>  Sent: Saturday, June 04, 2005 6:00 AM
>  To: Chris Hall
>  Cc: quattro at audifans.com
>  Subject: Re: Fuel Pump Relay question
>  
>  Chris Hall wrote:
>   > ... I'm wondering if the plug wires are arching.  I'd 
>  LIKE to do the  > "spray bottle" test, but 85% of my plug 
>  wires are in that loom that  > mounts to the valve cover, so 
>  the problem could be hidden in there...
>  
>  The weakness in the wires will more than likely be at the 
>  ends, by the spark plug and distributor terminals.
>  So wait for a dark night and spray those areas, and don't 
>  worry about what is under the cover.
>  
>  --
>  Kent McLean
>  '94 100 S Avant, "Moody"
>  '89 200 TQ, "Bad Puppy" up in smoke
>  '56 Austin-Healey 100 BN2, for sale
>  
>  
>