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Old 30 Nov 2004, 07:45 pm
Michael Pardee
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Default Re: how to test ECU on Honda Civic '89

"Roy and Rosa" <rbeaty@grandecom.net> wrote in message
news:10qnm4b1ts97857@corp.supernews.com...
> How can I check that the computer is working? Check engine light is on
> while ignition is on and while cranking, but no flashing led on ecu.
> I have no spark. all the distributor parts check out ok. Main relay too.
> No pulse from ECU.
> Fuse to ECU has no current draw on it. I pulled fuse and put an ammeter
> across terminals, no current draw!
> Anyone have a wiring diagram or a pinout of the ECU?
> Thanks Roy
>
>

Try checking for voltage on the fuse (or the fuse socket, if that is
easier). I'd suspect loss of voltage first.

Mike


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