Re: LS no start when it rains - AFM ?.

["Daegrigg (Don)" <daegrigg@domain.elided>]

Graham,

Here is a service bulletin about a no start due to moisture condition.
Here is the link,

/alfa/FAQ/164/b049401.htm
Hope it helps,

Don

----- Original Message -----
From: <Alfisto@domain.elided>
To: <alfa@domain.elided>
Sent: Thursday, January 23, 2003 12:41 PM
Subject: LS no start when it rains - AFM ?.


> I have a gremlin living in the engine of my 94 164LS. The car starts and
runs
> beautifully 99% of the time - except when it pours down with rain the
other
> 1%. I leave the car outside in the driveway and generally I cover it with
a
> semi-waterproof cover whenever rain threatens. It will always start the
next
> morning and run fine. If by chance I forget to add the cover and it pours
> down during the night, I can guarantee it will not start the next day -
the
> motor will flood. No way will the car start and I then have to wait a day
or
> so for it to dry out. Then the engine will start but will run extremely
rough
> until well warmed up - as if on four cylinders ! The interior of the
engine
> compartment is bone dry. The well below the windshield is dry except for
the
> area below the water runoff tubes for the sliding roof (some water in the
> gutters up there as well). The runoff tubes in the fenders are also clear
of
> leaves etc. Something is sending a signal to the ecu either not to start
or
> not to run rich when cold and/or wet. Most tuneup parts and sensors have
been
> replaced and even the ecu has been cleaned and inspected. Either something
is
> getting damp and causing this to happen or else I suspect it might be a
> problem in the AFM. Inside the gate to the AFM on the intake side there is
a
> small teat hanging down from the top. I have been told that this is a
> temperature and dampness sensor and sends signals to the ecu to control
and
> enrich the mixture. Is anyone familiar with this ? So far no mechanic has
> been able to diagnose or remedy this problem. Is anyone out there familiar
> with AFMs, or might have any clue as to what is causing this. I have a
spare
> which needs repairing. Who does that ?
> Graham Arlen
> Oakland CA
> 164LS, Milano and 61 spider
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