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Old 29 Nov 2004, 09:19 pm
Roy and Rosa
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Default how to test ECU on Honda Civic '89

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


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