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 109 Posts Member #: 8630 Advanced Member |
9th Oct, 2010 at 04:40:48pm
found this and thought id share it with you guys before i start to wire mine up the feed on the diagram that says ECU will be the feed from the oil pressure switch
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 (2)[/url] by [url=https://www.flickr.com/photos/150672766@N03/]Rod Sugden[/url], on Fli) 5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
9th Oct, 2010 at 05:18:59pm
Don't know where that diagram came from but it isn't "positive switched" as per it's title, it's ground switched (most ECUs switch to ground).
Schrödinger's cat - so which one am I ??? |
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109 Posts Member #: 8630 Advanced Member |
9th Oct, 2010 at 05:49:15pm
im using the standard mini one with the one connection on it and im using a 4 pin relay |
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5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
9th Oct, 2010 at 06:14:04pm
On 9th Oct, 2010 smudger483 said:
im using the standard mini one with the one connection on it and im using a 4 pin relay Sorry, won't work.... Standard oil pressure switch grounds when there is no oil pressure so if the relay coil is fed with 12V (as per the diagram) and the other side connected to the standard oil pressure switch, the relay will operate when there is no oil pressure (just like the warning light glows with no oil pressure). If the relay is then a four pin (no 87a) then the pump will only run with no oil pressure, the opposite of what you want. I hope that makes sense..... Schrödinger's cat - so which one am I ??? |
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109 Posts Member #: 8630 Advanced Member |
9th Oct, 2010 at 06:18:52pm
yeh rod cheers so could i swap the connections so it works or not |
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 11046 Posts Member #: 965 Post Whore Preston On The Brook |
9th Oct, 2010 at 06:23:15pm
The relay depicted does exist. It just has an extra 87 pin.
Edited by Sprocket on 9th Oct, 2010. On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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109 Posts Member #: 8630 Advanced Member |
9th Oct, 2010 at 06:26:08pm
ok i was gonna use a 4 pin relay should i get a 5 pin and if i could use a 4 pin how should i connect this so it works so for the questions im not a sparky and i havnt got a clue to electrics lol |
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109 Posts Member #: 8630 Advanced Member |
9th Oct, 2010 at 06:35:30pm
would this work with the 86 connection going to the oil pressure switch
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806 Posts Member #: 989 Post Whore North Yorkshire |
9th Oct, 2010 at 09:04:27pm
Why are you using the oil pressure switch? Use an ignition live straight to the relay and put an inertia switch in the circuit. |
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 338 Posts Member #: 1911 Senior Member Swindon |
9th Oct, 2010 at 09:13:43pm
smudger ill draw you up a circuit for using oil pressure as the controlling factor for the fuel pump as I'm doing this with mine. |
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109 Posts Member #: 8630 Advanced Member |
9th Oct, 2010 at 09:53:12pm
cheers quinton could you please include the connection numbers cos electrics to me is like quantum physics lol |
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1 Posts Member #: 9120 Junior Member |
12th Oct, 2010 at 11:38:46pm
Sorry to interupt this discussion, i have an MG Metro turbo and the fuel pump is not coming on when you turn the ignition on but it was before the battery went flat. I have located the fuel pump relay but i cant find the fuse that powers it... if it is located in the main fuse box the fuse is ok because i checked them all!! Oh and just to clear things up, the pump is a competion pump which was brand new less than 12 months ago!
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338 Posts Member #: 1911 Senior Member Swindon |
13th Oct, 2010 at 12:22:57am
here smudger
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