[Diy_efi] 4L80E into 6.2 diesel application

Wed Jul 16 01:15:17 GMT 2003

Needed items would be TCM and Prom, harness, TPS, tach signal input, VSS,
(input and output speed sensors are on transmission).
I don't think you'd need a Baro sensor, definitly not the RWAL stuff.

Lyndon

----- Original Message -----
From: "Eric Deslauriers" <eric.deslauriers at oracle.com>
To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
Sent: Tuesday, July 15, 2003 6:13 PM
Subject: RE: [Diy_efi] 4L80E into 6.2 diesel application

> I think the following is what I need. Thoughts?
>
>
> Looking at a '92 C2500 wiring diagram for the TCM, this is what I think I
> need:
>
> Need
> =======
> TCM
> wiring harness
> Barometric press. sensor
> TPS
> Engine speed sensor
> Input Speed Sensor
> Output Speed Sensor
> VSS Buffer [DRAC]
> ALDL connector for seperate interface from existing ALDL connector
> RWAL diode MOD <--what is this?
> ..Rear wheel anti-lock, perhaps? ignorable?
> cold advance solenoid
>
> Parts I already have on my 83 motorhome I can reuse
> -------
> NOTE: the 3 following seem to be on their own circuit anyways. Right?
> ..fast idle sol
> ..fast idle temp sw
> ..water in fuel sensor
>
> NO need
> --------
> Fuel relay [could use]
> fuel pump [could use, already have aftermarket]
> fuel heater
>
> > -----Original Message-----
> > From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
> > Behalf Of Programmer
> > Sent: Tuesday, July 15, 2003 12:34 PM
> > To: List for general do-it-yourself EFI talk
> > Subject: Re: [Diy_efi] 4L80E into 6.2 diesel application
> >
> >
> > GM makes a standalone--look at the applications. They used a 6.2
> > with 4L80E
> > trans. Get the schematics--get the necessary sensors. I think all
> > it uses is
> > the TPS and VSS.
> >
> > If you need further info, I'll look it up.
> >
> > Lyndon
> >
> > ----- Original Message -----
> > From: "Eric Deslauriers" <eric.deslauriers at oracle.com>
> > To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
> > Sent: Tuesday, July 15, 2003 12:05 PM
> > Subject: RE: [Diy_efi] 4L80E into 6.2 diesel application
> >
> >
> > > Lyndon,
> > >
> > > So I would need the valve body and the TC?
> > >
> > > I talked to Jet, but they're going downhill in a hurry and had no
info.
> > Art
> > > Carr wasn't much better.
> > >
> > > Thanks,
> > > Eric
> > >
> > >
> > > > -----Original Message-----
> > > > From: diy_efi-bounces at diy-efi.org
> > [mailto:diy_efi-bounces at diy-efi.org]On
> > > > Behalf Of Programmer
> > > > Sent: Tuesday, July 15, 2003 7:19 AM
> > > > To: List for general do-it-yourself EFI talk
> > > > Subject: Re: [Diy_efi] 4L80E into 6.2 diesel application
> > > >
> > > >
> > > > The internals on the transmission (gear ratios) are identical
> > to that of
> > a
> > > > "gas" transmission. The differences are in the valve body and torque
> > > > converter.
> > > >
> > > > Lyndon
> > > >
> > > > ----- Original Message -----
> > > > From: "Perry Harrington" <pedward at apsoft.com>
> > > > To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
> > > > Sent: Monday, July 14, 2003 7:31 PM
> > > > Subject: Re: [Diy_efi] 4L80E into 6.2 diesel application
> > > >
> > > >
> > > > > Jet makes a "Transconversion kit" for 4L80-E trannies.  It is
> > > > an external
> > > > computer
> > > > > that controls the transmission.  From what I know of Fords,
> > the diesel
> > > > trannies have
> > > > > significantly different gear ratios than gasoline.  The reason
> > > > being that
> > > > the diesel's
> > > > > don't rev very high.
> > > > >
> > > > > --Perry
> > > > >
> > > > > On Mon, Jul 14, 2003 at 09:04:47PM -0400, Ray wrote:
> > > > > > If you have the pinout of all the connectors, you can probably
put
> > > > together an analog shift computer that uses a few op-amps and some
> > driver
> > > > transistors.  You will need to send the engine speed and load into
the
> > > > computer.  If you want to have something a little better, adding
> > > > inputs for
> > > > things like engine temperature and road speed will help.
> > > > > >
> > > > > > In the mean time, you can always hook the harness up to a few
> > switches
> > > > and shift it manually.
> > > > > >
> > > > > >
> > > > > > Ray Drouillard
> > > > > >
> > > > > >   ----- Original Message -----
> > > > > >   From: Eric Deslauriers
> > > > > >   To: diy_efi at diy-efi.org
> > > > > >   Sent: Monday, July 14, 2003 7:54 PM
> > > > > >   Subject: [Diy_efi] 4L80E into 6.2 diesel application
> > > > > >
> > > > > >
> > > > > >   I have an 83 6.2 diesel I want to put a 4L80E behind.
> > > > > >
> > > > > >   Am I stuck buying the piggback computers, or is there
> > > > something I can
> > > > DIY myself? :)
> > > > > >
> > > > > >   Also, beyond torque converter and SW, is there anything
> > different
> > > > between diesel and gas 4L80Es?
> > > > > >
> > > > > >   Thanks!
> > > > > >   Eric D
> > > > >
> > > > >
> > > > > --
> > > > > Perry Harrington Data Acquisition & Instrumentation, Inc
> > > > > perry at dainst dot com http://www.dainst.com/
> > > > >
> > > > > Those who would give up essential liberty to purchase a little
> > temporary
> > > > safety
> > > > > deserve neither liberty or safety. Nor, are they likely to
> > end up with
> > > > either.
> > > > >                              -- Benjamin Franklin
> > > > >
> > > > > _______________________________________________
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