Bench ecms

Thomas Matthews tmatthew at stny.lrun.com
Fri Aug 14 04:37:14 GMT 1998


Is there any chips that do the lean cruise mode in the '747 stock? I know
the F-bod TBI's have lean cruise, and a few others... Just wondering if the
'747 has that in a stock prgm. I do know that the 454 TBI's hold OL at idle,
is there a location as % open TPS/MAP?
TIA
Tom

> -----Original Message-----
> From: owner-diy_efi at efi332.eng.ohio-state.edu
> [mailto:owner-diy_efi at efi332.eng.ohio-state.edu]On Behalf Of Bruce
> Plecan
> Sent: Thursday, August 13, 1998 9:52 PM
> To: diy_efi at efi332.eng.ohio-state.edu
> Subject: Re: Bench ecms
>
>
>
> -----Original Message-----
> From: steve ravet <steve at imes.com>
> Subject: Re: Bench ecms
>
>
> >Bruce Plecan wrote:
> >> >  My ecm
> >> >is 16136965.
> >> The gas mileage master emc, does a lean cruise.
> >
> >I do get pretty good gas mileage.  The new 5.7L gets the same around
> >town as the 2.8L, and just a little worse on the highway.  I've got the
> >Caprice service manual, I haven't seen any mention of the lean cruise
> >mode.  How'd ya learn about that?
>
> Just used a 10 LED AFR dealy.  Then there were some notes in the
> archives about it.  Kinda neat to watch.  FWIW, I think it goes to a
> ignore O2 mode like when doing the 13-44-45 disable, disconnect
> O2 mode.   When doing that AFR goes low but is at the 128 BL/INT
> mode.
> Cheerios
> Bruce
>
> >--steve
> >
> >
> >--
> >Steve Ravet
> >International Meta Systems
> >http://www.imes.com
> >steve at imes.com
> >
>




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