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Author Urgent help needed :( (c20let wiring)
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
User status: Offline
8th May 09 at 17:42   View User's Profile U2U Member Reply With Quote

Where does the Brown and blue wire goe that comes out of the fuel pump relay?

i know one wire goes to the corsa internal loom, but this goes to the EML light.

My car is igniting all over the place when i have the brown and blue wire from the ecu loom connected to the brown and blue wire from the Fuel pump relay plug.

the car runs, but ignites all over the place, im gathering the wire thats connected to the fuel pump plug is the wrong one, becuase as soon as you take it off the car runs spot on untill it uses up the fuel thats in the rail.

I know it the wrong section but i need a quick answer, as im on my boss's PC and im not meant to be, any help at all would be great

Edit. there is a total of 5 identical brown and blue wires on the c20let loom

[Edited on 08-05-2009 by Mike GSi]
andyc1234
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Registered: 7th Nov 06
Location: Lancashire
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8th May 09 at 17:43   View User's Profile U2U Member Reply With Quote

just connect t colour for colour to the corsa loom its as easy as thats. any that dont match are not used
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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8th May 09 at 17:45   View User's Profile U2U Member Reply With Quote

So Fuel pump plug Brown/Blue to Corsa loom Brown/Blue?

When i do this i get a constant buzz from the fuel pump.
andyc1234
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Registered: 7th Nov 06
Location: Lancashire
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8th May 09 at 17:47   View User's Profile U2U Member Reply With Quote

they do buzz all the time unless its stupidly loud then i dont know hows your fuel level?
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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8th May 09 at 17:48   View User's Profile U2U Member Reply With Quote

fuel level is low but not that low, the pump didnt used to buzz constantly.
lee mitchell
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Registered: 26th Jan 01
Location: kent...drive's: eveyones conversion cars hard lol
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8th May 09 at 18:19   View User's Profile U2U Member Reply With Quote

the brown blue on the corsa loom goes to eml light. there will b a plug on the let loom which will have a brown and blue that this needs connecting too. the brown blue from the relay should go to pin 3 on the ecu
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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8th May 09 at 18:59   View User's Profile U2U Member Reply With Quote

thank you very much
Rupean
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Registered: 24th Dec 03
Location: Leicester
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8th May 09 at 19:01   View User's Profile U2U Member Reply With Quote

the fuel pump wire on the engine loom is a thick red/blue and same for car side.
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
User status: Offline
8th May 09 at 19:14   View User's Profile U2U Member Reply With Quote

Yeah i know that thanks but im wondering what the brown/blue wire that goes into the fuel pump relay does
Col004
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Registered: 25th Jun 03
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8th May 09 at 19:22   View User's Profile U2U Member Reply With Quote

Follow that matey.

Dont conect the one ive crossed out., just connect the thicker red and blue. the thin one fooks it all up




[Edited on 08-05-2009 by Col004]
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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8th May 09 at 19:29   View User's Profile U2U Member Reply With Quote

so the thicker red/blue on the LET loom goes to the thin red/blue left on the corsa?
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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8th May 09 at 19:31   View User's Profile U2U Member Reply With Quote

at the moment its thin red/blue to thin red/blue? if i change them over what do i do with the thin re/blue now left over?
Col004
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Registered: 25th Jun 03
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8th May 09 at 19:36   View User's Profile U2U Member Reply With Quote

just cap it off matey. you dont need it
Col004
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Registered: 25th Jun 03
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8th May 09 at 19:38   View User's Profile U2U Member Reply With Quote

thick to thick. leave the thin alone, just follow that sheet mate and it will be spot on

 
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