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MikeS

Fuel pump overrun

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My TR6 1972 PI suffers from overrunning ( continuous) after ignition switch is off. I discovered that the fuel pump remains running after the ignition is off and only stops when I remove battery lead.

1/ If this is the problem where is the power connection error or

2/ Is it simply a pre-inition symptom.

My wiring diagram seems to be complied with but looking for options.

Regards

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It can't be on 24 hours day surely. If its only staying on for a short time after switching off I'd look at the ignition/starter switch.

 

Preignition type running on will not keep the pump electrically energized.

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If its on the same circuit as an electric fan that runs on after shut down then it might.

Stuart.

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If its on the same circuit as an electric fan that runs on after shut down then it might.

Stuart.

Also, is there a relay having been wired in by a previous owner and the contacts inside are sticking closed? This has happen to me with relays in the past!

 

Bruce.

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I noticed on mine (which I modified with a relay) that it seemed to run for about 5 seconds after I switched off. Never an issue, just a quirk.

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