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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » Corsa b redtop fuel pump not working??


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Author Corsa b redtop fuel pump not working??
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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11th Mar 12 at 12:22   View User's Profile U2U Member Reply With Quote
The car cranks over but no fuel?? I can't hear the fuel pump prime and I'm not getting any volts on the red and blue wire that connects in the 9 pin plug in the footwell either end?? Any ideas?
jayy.cfg
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Registered: 11th Jul 11
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11th Mar 12 at 14:10   View User's Profile U2U Member Reply With Quote
either u havent got it wired up rightly or pump gone/ fuel relay possy

try bypassing 1 at time to see what it is
Tony M84
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Registered: 26th Jul 11
Location: Leicester
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11th Mar 12 at 15:51   View User's Profile U2U Member Reply With Quote
You got it connected to the thick blue and red rather than the thin blue and red?
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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11th Mar 12 at 17:20   View User's Profile U2U Member Reply With Quote
No it's connected to to the thin red and blue wire that comes out of the fuel pump relay to Corsa 9 pin plug...there is a thicker red and blue wire that's part of the c20xe loom??
BeArDy
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Registered: 7th Aug 00
Location: Manchester
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11th Mar 12 at 17:30   View User's Profile U2U Member Reply With Quote
has the car ever ran?
do you have spark?

[Edited on 11-03-2012 by BeArDy]
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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11th Mar 12 at 17:35   View User's Profile U2U Member Reply With Quote
Yes engine ran and car ran before conversion and yes there is a spark just no fuel?? Is it the thin red and blue wire that you connect at the 9 pin plug or do you cut into the thick red and blue and connect that?
DanCobb
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Registered: 14th May 11
Location: Lewes/Brighton
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11th Mar 12 at 17:47   View User's Profile U2U Member Reply With Quote
Take it out and Test it on a car battery, if it spits out fuel thens it's working, if it doesn't then it's fucked.
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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11th Mar 12 at 17:52   View User's Profile U2U Member Reply With Quote
I'm not getting any volts on the thin red and blue wire that's attached to the fuel pump relay, what about the thick red and blue wire? I have only connected a thin red and blue wire, where is this thick read and blue wire go? Onto the xe fuel pump relay??
Tony M84
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Registered: 26th Jul 11
Location: Leicester
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11th Mar 12 at 23:47   View User's Profile U2U Member Reply With Quote
Use the thick red and blue wire mate. I had a 20XE engine, I just spliced the thick red and blue from where it comes out of the ECU straight to the fuel pump live.

[Edited on 11-03-2012 by Tony M84]
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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12th Mar 12 at 13:38   View User's Profile U2U Member Reply With Quote
It might sound stupid but there are 2 red/blue wires coming out of the 9 pin plug 1 is thicker than the other, these are both connected to the matching wires on the fuel pump relay....there's also a really thick red/blue wire coming out of the fuel pump relay that goes of into the c20xe loom or ecu?? Then that leaves a red thick wire coming out of the fuel pump relay that's not attached?? Is this the wire you talk about splicing into??
Tony M84
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Registered: 26th Jul 11
Location: Leicester
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12th Mar 12 at 14:46   View User's Profile U2U Member Reply With Quote
No thats not the wire I'm on about splicing into but I think that thick red wire is live to the fuel pump relay? Someone will hopefully confirm that either way. Get the fat rectangular plug that plugs into the ECU, there will you need to splice the thicker of the 2 red and blue wires straight onto the fuel pump live.
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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12th Mar 12 at 14:55   View User's Profile U2U Member Reply With Quote
Ok which is the fuel pump live wire? I would a pic up but don't how from my phone? And all the other wires in the 9 pin plug are correctly matched up!
Tony M84
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Registered: 26th Jul 11
Location: Leicester
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12th Mar 12 at 16:06   View User's Profile U2U Member Reply With Quote
Fuel pump live is the fat red wire
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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12th Mar 12 at 16:52   View User's Profile U2U Member Reply With Quote
So I put the fat red wire and splice it in to the fat red/blue wire that goes from the fuel pump relay to the ecu?
Tony M84
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Registered: 26th Jul 11
Location: Leicester
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12th Mar 12 at 17:12   View User's Profile U2U Member Reply With Quote
What wire goes to your fuel pump live?

[Edited on 12-03-2012 by Tony M84]
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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12th Mar 12 at 17:27   View User's Profile U2U Member Reply With Quote
Nothing is connected to the fat red wire coming out of the fuel pump relay?
Tony M84
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Registered: 26th Jul 11
Location: Leicester
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12th Mar 12 at 23:34   View User's Profile U2U Member Reply With Quote
Get a live to the fat red wire then lol
jayy.cfg
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Registered: 11th Jul 11
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13th Mar 12 at 07:14   View User's Profile U2U Member Reply With Quote
Where abouts are you from ?
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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13th Mar 12 at 09:15   View User's Profile U2U Member Reply With Quote
Ok will give it a go I'm just shit with wires!! If nothing works then is it the fuel pump?? I'm from Chippenham, wiltshire
Tony M84
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Registered: 26th Jul 11
Location: Leicester
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13th Mar 12 at 13:36   View User's Profile U2U Member Reply With Quote
Tell you what mate, ignore that fat red wire for now and just splice the bigger of the 2 blue with red trace wire from the fuel pump relay and connect it to your fuel pump live terminal.

 
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