OMG! It's not the heat, well...

[jdbubb at verizon.net (Dan Bubb)]

OH MY GOD!
Whenever I install a Megasquirt or Haltech or whatever I ground the unit at the battery.
So, I guess that makes me a German descended engineer you'd like to slap??? ;^)
Dan

From: "David Winchell, II" <davidwinchell2@sprynet.com>
Sent: Tuesday, July 18, 2006 7:09 AM
Subject: RE: OMG! It's not the heat, well...


> Ah,  Another for the "German Auto Engineers I'd Like to Slap" Column
> 
> From: Dan Bubb [mailto:jdbubb@verizon.net] 
> Sent: Tuesday, July 18, 2006 7:13 AM
> Subject: Re: OMG! It's not the heat, well...
> 
> The ignition control unit and the oxygen control unit/fuel injection ECU are
> grounded directly to the battery.
> And apparently not anywhere else! ;^)
> So, there you go!
> Dan
> 
> From: "David Winchell, II" <davidwinchell2@sprynet.com>
> Sent: Tuesday, July 18, 2006 6:47 AM
> Subject: OMG! It's not the heat, well...
> 
> 
>> OMG!  It's not the heat, it's the humidity.  Well, it is the heat and
>> humidity actually.  
>> 
>> 
>> 
>> Last night, I took out the 16V to ride over and look at the car Julie is
>> buying and get her some information. (Did I send you the VIN?) I left the
>> house at 6:45 PM.  We have been under heat advisories for about the last
>> week. When I left it was still 98*.  With the heat index the real feel was
>> 109.  At 6:45 PM people?!?! God, I love the south, but please, a little
> help
>> here?!
>> 
>> 
>> 
>> To make a long story short, about four blocks from my house the car just
>> dies right after taking off from a stop.  Coast to the side of the road,
> try
>> to restart.  not gonna do it.  The motor was turning, but not dice.  SUCK!
>> It's TOO HOT!  There I am already drenched is sweat, longing to get home
> and
>> jump back in the shower and the car won't go any where.  A couple of
> minutes
>> under the hood and I found the culprit.  On the 16V there are two ground
>> wires that are joined into one single crimp and attached to the negative
>> cable right at the post.  It sheared at the connector.  What do these go
> to
>> that the car would run with it, but not with out them?  Anyone know?  
>> 
>> 
>> 
>> I was able to MacGyver the line to get over to John's house and check out
>> Julies new ride and then back to mine without incident.  I am just curious
>> what those grounds lead to that are able to kill the car with out them
>> properly attached.
>> 
>> 
>> 
>> Dave
>> 
>> 
>> 
>> David Winchell, II
>> 
>> 87 2.0L 16V Scirocco
>> 
>> 84 Scirocco BBS Turbo G60
>> 
>> 80 Scirocco S
>> 
>> 04 .:R32 DBP
>> 
>> 00 Silverado
>> 
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> 
>