7747 A/C enable

[Shannen Durphey]

Brent Obermiller wrote:
> 
> Thanks Jim, but that's what I'm trying avoid.  I just spend 3 afternoons
> trying to get my new 134a to cool me and I traced it to the
> relay...apparently the Olds 307 Carb ECM is programmed like the 7747 (w/
> respect to the A/C enable) and I just got done rewiring the relay for the
> 16136965, Monday. 
So if you don't want to do that a/c wire swap (this is really no big
deal), just leave the a/c disabled until the end.  

 Worst case I'll put two  one wire weather-pak connectors
> on the relay and swap back and forth w/ the computers, but I was thinking
> that the point of *electronic* fuel injection is ease/ improve recalibration
> through software.  (That why we dispise carburetors, ladder logic, and
> hydraulic logic,as mechanical logic controllers, right?)
Who's "we"? ; )

> You guys are smart, I know one of you knows where this memory location
> hides. 
And you're sure there a simple bit change to fix this?  If you find
it, post it here so the next guy to ask can locate the info without
many hours of work.

The weather-pak thing would be *okay* but as Mike Knell says, "the
> hard part is making it look easy." Currently my set-up looks 'factory' and I

With the right relay, it's a simple one wire swap.  Are you going to
be switching ecm's repeatedly?  Later GM relays such as cooling fan,
a/c control, fog lights all have  normally closed and normally open
circuits which flip flop with the relay coil powered up.  There's a
$10.00 wiring tool available from the traveling tool dealers that
makes this kind of job a breeze.  Remember, the easiest solution isn't
always the one you're looking for. : )
Shannen

> love it.
> Thanks Again, Brent
> 
> _______________________________________________________________
> Get Free Email and Do More On The Web. Visit http://www.msn.com