[Diy_efi] info

[Steve Ravet]

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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