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Re: still going lean
Everybody thanks. I just had my TPS enable set to 90%
for programming purposes. I will be setting it back
and fine tuning the VE table right up to 3500 or so
and have the PE mode kick in from there for any hard
accel.
Dennis
hetwagner@uswest.net wrote:
> I have an ecu file that may be of use for what you
> want to do. If you
> want to give it a try with WinBin, let me know and I
> will send it to
> you. If you are using the code from the 90-92
> Camaro or 90-91 Vet
> then it will work. Been using it for my conversion
> and has done
> everything I have come to expect from it. If there
> are not enough
> settings, I can put more of what you want in.
>
> On 30 Aug 2000, at 16:53, DenniS Zacek wrote:
>
> > Yes the engine is in a 85 corvette 383,miniram
> motor.
> > A ZF with 4.10s
> > I would have to say thats its more sensative in
> any
> > little quirks or stumbles overa auto car. You
> feel
> > every mis tune.
> > I am using diacom.
> > I usually keep the tps enable low say 3500up 25%.
> > Car is running high 11's
> > O2's look great for WOT(I know alot of guys dont
> like
> > reading from these)
> > Fuel pump is a high output bosch.
> > So Are you saying may be hard or not able to tune
> 4000
> > up above 70kpa.
> > I do have diacom traces if anyone wants to take a
> > look.
> >
> > So tweaking the pumpshot may help. I really never
> > tweaked with this. I mainly run GMepr and didnt
> > notice a pumpshot thru this edit prog.
> >
> > Thanks Dennis
> > --- Bruce Plecan <nacelp@bright.net> wrote:
> > >
> > > > just to touch base. I converted from a 870 ecm
> to
> > > the
> > > > 7730 speed density in the spring time. All
> went
> > > well.
> > > > I was running my 24 lb injectors at first and
> 2
> > > months
> > > > ago I swapped in some 36lbr's. The 24's were
> over
> > > 10ms
> > > > above 6000. so close to static.
> > >
> > > So this is not a stock engine, right?
> > >
> > > > Well I everything was decent but I am really
> > > trying to
> > > > fine tune the drivabilty. Above 4000 its
> going
> > > lean.
> > >
> > > How are you determining this?
> > >
> > > > I set the TPS enable to 90% for all RPM
> rngs.s(so
> > > it
> > > > wont bump in open loop) .I also have the blm
> > > locked in
> > > > at 128. I had my inj set to 34. wit hthis the
> car
> > > ran
> > > > decent ,WOT was right on but above 4000
> leaning
> > > out.
> > >
> > > This is the way it's going to be as long as you
> > > approach WOT but staying in
> > > Closed loop. Are you running Diacom?, or some
> why
> > > to monitor the commanded
> > > AFR.
> > >
> > > > Now for a while I had the TPS open loop enable
> set
> > > to
> > > > like 20 % at about 3000 up so it would run
> good
> > > but
> > > > now I am trying to get it right.
> > >
> > > Stout engines might take a low TPS enable to get
> > > enough fuel for it to get
> > > along. Remember the engine tells you what it
> wants,
> > > and then even off the
> > > edges to get the drivibility. As a forinstance,
> the
> > > GN also has a fairly
> > > low TPS enable. On the cross fire, I think most
> of
> > > them were 35%. Tune to
> > > what the table allows. On a mild engine, you
> might
> > > be able to **tune** to
> > > 90ish K/Pa.. Also want to monitor what the WOT
> > > K/Pa, a restrictive
> > > exhuast, and some seemingly good ones can choke
> off
> > > the motor.
> > >
> > > I went from 34 to 31
> > > > and turned FP up to 50 and still goes lean the
> > > INT's
> > > > go up above 150. My VE tables are maxed out
> up in
> > > > this area as well.
> > >
> > > Might just be out of Fuel Pump.
> > >
> > > > I though going from 24 to 31 injector would be
> > > alot
> > > > but maybe not . Should I go down another 2
> counts.
> > > I
> > > > saw in cats thers a pumpshot value , Is this
> sort
> > > of
> > > > like a accel pump?
> > >
> > > Exactamundo
> > > Bruce
> > >
> > >
> > > Any sugestions??
> > > > TIA
> > > > Dennis
> > > >
> > > > =====
> > > > Dennis Zacek
> > > > http://geocities.com/bowtie8
> > > >
> > > >
> __________________________________________________
> > > > Do You Yahoo!?
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> > > anywhere!
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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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