85(870 ecm) open loop hac code

[Zacek DenniS]

The car I am working on is a 85vette and my car is a
85 vette with the conversion. so Yep I tore my car
apart trying to find the bug in this one:(
--- Zacek DenniS <bowtye8 at yahoo.com> wrote:
> The car is a 85 with with the factory 870ecm.  For
> diagnosing purposes I temp installed my 7730 with
> the
> map. I have a underhood harness for the map and a
> 7730
> conversion harness so the swap takes less than 5
> min.
> The only part I skipped was the SD knocker.It gave a
> code on the 7730 but I just made teh highway timing
> all max of 2 degress. this seems tobe the lookup
> table
> when the 7730 loses the knocker.
> Sice the 870 ecm was hard to log data with I swapped
> in my 7730 for diacom readings.
> Dennis
> --- Bruce Plecan <nacelp at bright.net> wrote:
> > 
> > You have a v8 MAF 730?.
> > Or using the 730 in a MAP mode and trying to
> figure
> > out a MAF system?.
> > You've lost me
> > Bruce
> > 
> > 
> > > Its my own custum bin. mostly from my car. just
> > > tweaked some parameters to match his setup.
> > > He has to get custum exhaust so I want to
> install
> > his
> > > 870 ecm back in the car and keep it open open
> loop
> > for
> > > a few driving days and till he gets a better
> > exhaust
> > > and the o2 welded in a better location
> > > --- Bruce Plecan <nacelp at bright.net> wrote:
> > > >
> > > >
> > > >
> > > > > I am working on a buds car. Right now I have
> a
> > > > 7730 in
> > > > > it for diagnosing, but his ecm is the 870:(
> > > >
> > > > What code are you running in the 730 to do
> this?
> > > >
> > > > > I have t okeep the car in open loop to get
> > some
> > > > work
> > > > > done . For the 7730 I just set the open loop
> > temp
> > > > > enable to 225.(he has a 160 tstat and he fan
> > are
> > > > on at
> > > > > 180) so it will stay in open loop and run
> > fine.
> > > > > His problem is the o2 sensor. I was told RTV
> > could
> > > > > have killed it. Well I have athird O2 in it
> a
> > > > heated
> > > > > one at that.
> > > > > The O2 is in the drivers side primary header
> > tube
> > > > with
> > > > > full exhaust cat and all.
> > > > > Its there a addy or I was thinking to set
> the
> > TPS
> > > > PE
> > > > > enable really low. not shurew if it goes
> that
> > low
> > > > 0%
> > > > > What other alternative do I have. beside a
> > 7730
> > > > > upgrade for his car right now.
> > > >
> > > > Why a low PE?.
> > > > If you eaten 3 O2s in rather shot order then
> it
> > > > sounds like silicone
> > > >
> > > > >
> > > > > =====
> > > > > Dennis Zacek
> > > > > http://geocities.com/bowtie8
> > > > >
> > > > >
> > __________________________________________________
> > > > > Do You Yahoo!?
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> > > >
> > >
> >
>
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> > > =====
> > > Dennis Zacek
> > > http://geocities.com/bowtie8
> > >
> > >
> __________________________________________________
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> 
> =====
> Dennis Zacek
> http://geocities.com/bowtie8
> 
> __________________________________________________
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=====
Dennis Zacek
http://geocities.com/bowtie8

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