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yeah I understand how the relay provides power to the injectors and that presquirt only happens once. I discovered that having removed the relays one of the connectors had pushed out when I replaced them, so fuel pump not running. Engine now runs but problem is still there. The buzzing noise occurs for a second or two after the engine has stalled. I can't tell if it is there whilst engine is running because of the engine noise. It does not sound anything like the presquirt clicking of the injectors. A loud buzz! too fast I would have thought for injectors cycling at 900 rpm. I guess bypassing the relays will prove one way or another if the noise is relay chatter.
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