Fw: [Diy_efi] info

[Lee M. Lemoine]

If your ECM isn't working, and drying it out hasn't helped, try for the
basics: make sure it has power, and that the relays that its supposed to
control are being controlled (for instance, does it do a fuel pump prime at
key-on?) Maybe you got lucky and popped a fuse or fusible link, sometimes
this is located in a grounding strap , between the ECM and the chassis
somewhere. (you'd need a factory manual to find it, however, that was the
case with my '89 bronco ][ -- and i know Ford has some influence on the
Mazda stuff...

Just a thought... Best regards,

--LL

On 10/26/05, Dustin Lof <bubblesjrtwo at yahoo.com> wrote:
>
> If you can't find a used one NAPA, or any other parts
> house can do an R&R on yours, that way they can find
> the parts and also put a warranty on it, but I'm just
> a mechanic.
>
> --- Geoff Harrison <geoff_h at smartchat.net.au> wrote:
>
> > John, if antifreeze can damage paint, think about
> > what it may do
> > to a PCB.
> > You could spend a lot of time replacing parts, and
> > still have an
> > unreliable
> > ECU. Wrecking yard option sounds good. Make sure it
> > comes from a
> > car
> > without a leaky heater core.
> >
> > Geoff H
> >
> > From: "Steve Ravet" <Steve.Ravet at arm.com>
> > To: <diy_efi at diy-efi.org>
> > Sent: Thursday, October 27, 2005 7:26 AM
> > Subject: RE: [Diy_efi] info
> >
> >
> > I can't speak to your ECM specifically, but GM units
> > use a
> > mixture of
> > off the shelf parts and custom chips. Even the off
> > the shelf
> > parts may
> > have a non standard part number on them. Yours may
> > be the same
> > way. Any
> > chance of swapping a junkyard box in? or a junkyard
> > box for
> > parts
> > scrounging?
> > --steve
> >
> > > -----Original Message-----
> > > From: diy_efi-bounces at diy-efi.org
> > > [mailto:diy_efi-bounces at diy-efi.org] On Behalf Of
> > miwukkid
> > > Sent: Wednesday, October 26, 2005 1:29 PM
> > > To: Diy_efi at diy-efi.org
> > > Subject: [Diy_efi] info
> > >
> > > I have a 91 Mazda protege front wheel drive with
> > the 1.8 l
> > > SOHC engine.
> > > The ECU mounts under the center of the instrument
> > panel. The
> > > heater core
> > > sprung a leak and when the engine stopped running
> > I noticed
> > > that I had a
> > > computer box full of Anti-freeze. After the
> > monumental task
> > > of replacing
> > > the heater core I need to test the ECU. Is there
> > any way to
> > > get a
> > > schematic??Some of the IC's come up on the web for
> > sale but no
> > > data
> > > sheet Same for the Processor. The darn thing has
> > only one
> > > injector
> > > driver and puts all of the injectors in
> > parallel???? The
> > > little engine
> > > is amazing when it runs. Appreciate any help or
> > direction
> > > pointers. I
> > > will replace it with a PIC micro in the near
> > future. I have a
> > > lot of
> > > them left over after a home control project.
> > > John A. Allison
> > > Miwukkid at myhome.net
> > >
> > > _______________________________________________
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> > > Diy_efi at diy-efi.org
> > > http://lists.diy-efi.org/mailman/listinfo/diy_efi
> > >
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> >
>
>
>
>
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--
Sincerely,

Lee M. Lemoine
http://www.turbochargedsoul.com/
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