Idle too high. How do I adjust

[Bruce]

Salt water, yes, is a problem.
But, I had an ecm once that was several pounds over weight.
It was packed tight with mud.  Took the case apart, washed the mud out, gave
it a shot of electrical cleaner, and was good as new
Bruce





----- Original Message -----
From: "Scott Pearson" <mrcad472 at bigplanet.com>
To: <gmecm at diy-efi.org>
Sent: Tuesday, September 04, 2001 5:53 PM
Subject: Re: Idle too high. How do I adjust


> How are you keeping a 747 away from the elements in a boat? Especially if
> you operate it in salt water, that stuff is nasty to any metal, especially
> electronics. Would hate to be several miles from land and short out the
ECM.
> .
>
> Scott
>
> ----- Original Message -----
> From: "Bruce" <nacelp at bright.net>
> To: <gmecm at diy-efi.org>
> Sent: Monday, September 04, 2000 2:44 PM
> Subject: Re: Idle too high. How do I adjust
>
>
> >
> > Dunno anyone that does boat chips off hand.
> > The proper answer is burning your own chips anyway.
> >
> > Might try just leaving the IAC unplugged.
> > Jump A-B at the ALDL, key on for 30 secs., unplug IAC, and then key off,
> > start engine, set min idle speed adj..  Would defeat the IAC, not the
best
> > answer but an answer
> > Bruce
> >
> >
> > ----- Original Message -----
> > From: "ZZZ Temp-Gold" <Temp-Gold at HighlandsIns.com>
> > To: <gmecm at diy-efi.org>
> > Sent: Tuesday, September 04, 2001 3:21 PM
> > Subject: Idle too high. How do I adjust
> >
> >
> > > I have repowered my boat with a '90 rv tbi 7.4. It has a 747 ecu and
> works
> > > nicely, other than the idle. The boat likes a 500+/- rpm idle and it's
> > > currently idling at 800. What can be done to adjust it? (Ive tried
> backing
> > > off the butterfly, and this seems to help, until I restart the motor
and
> > it
> > > goes back up to 800 again.) If reprogramming is the only solution, Id
> sure
> > > buy an 'adjusted' chip.
> > >
> > > Also, it pulls up to 4200 rpm. Is this the upper limit of the motor?
It
> > > seems reasonable, just curious.
> > >
> > > Thanks,
> > >
> > > Greg Gold
> >
>
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