[Gmecm] Putting the computer in the engine compartment?

[Steve Ravet]

> -----Original Message-----
> From: gmecm-bounces at diy-efi.org 
> [mailto:gmecm-bounces at diy-efi.org] On Behalf Of Jay Vessels
> Sent: Friday, November 25, 2005 7:44 PM
> To: gmecm at diy-efi.org
> Subject: Re: [Gmecm] Putting the computer in the engine compartment?
> 
> Hi there!
> 
> mark krawczuk wrote:
> > hi,  what about using silicone to seal ?
> 
> Silicone would work fine for the box but you're still going 
> to have water travel down each individual wire.  The ECM 
> connectors aren't weatherproof.  You might get away with 
> filling the connector shells with silicone but then you 
> couldn't unplug the connectors!  Filling the shells without 
> the connection already made would be difficult -- it would be 
> hard to seal the individual pin cavities without affecting 
> the connectivity of the pins and the shells.

the couple gm wiring harnesses I've pulled apart usually have a portion
of the harness that goes through the firewall via what I call a gooey
grommet.  there's no connector involved, just a large rectangular
grommet filled with something a little harder than dried silicone.  you
could duplicate this with silicone, if the wires were very clean, you
made sure the glob covered every wire, etc.

--steve