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Fuel Pump Relay 'Problem' - Mk1 Golf GTi 1.8

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Oh and no relay for it, the 42/43 relay only handles coolant level warning light

Hello my name is John and I'm a dub addict.



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Last edit: by Pete Zwanepoel

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To resurrect an old thread if I may… the right eyes might see it.

My '75 1500 auto has twin carbs on, it's had a facet electric pump on for about 20 years, last year i got a filter/ regulator fitted also.

A number of years ago i fitted a fuel pump override switch for an extra level of security though this was incorrectly wired due to my limited electrical knowledge at the time.

A relay for the pump should have been used, though can i still have the kill switch for when it's parked up and whatnot and still use a relay that works from the rev counter signal so that it kills the pump when the engine cuts out?

obviously, it's an early ceramic fusebox that i have. but i can follow a diagram if a remote relay is to be used.

cheers for any assistance. oh and happy new year!

rabbitation_avatar.JPG  1975 VW Golf LS Automatic  - Twin Carbs

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yep you can wire the kill switch inline with the ignition live or the rev counter signal to the relay, that way there is no load on it :)

Hello my name is John and I'm a dub addict.



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30 - main live, H spade
87 - power out, fused for pump
86 or 15 - ignition live, G spade 3 will work or you could tap to coil power, or whatever
31 or 85 - earth to claw near fusebox
1, 31b or 85b - rev counter signal, tap to coil negative red/black

Hello my name is John and I'm a dub addict.



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rubjonny said

yep you can wire the kill switch inline with the ignition live or the rev counter signal to the relay, that way there is no load on it :)

Nice one cheers for that and the lower reply, much appreciated  :thumbs:

rabbitation_avatar.JPG  1975 VW Golf LS Automatic  - Twin Carbs

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you're welcome :)

Hello my name is John and I'm a dub addict.



My wiring diagrams and other documents have moved here:

VAG Documents & Downloads

You'll need to sign into google/gmail for the link to work! (its free!)
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