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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » Corsa b redtop not cranking or priming the fuel pump???


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Author Corsa b redtop not cranking or priming the fuel pump???
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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4th Mar 12 at 13:25   View User's Profile U2U Member Reply With Quote
I have recently finished my redtop project but now I can't get to crank over or prime the pump, any ideas??
fazza
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Registered: 7th Feb 08
Location: Plymouth
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4th Mar 12 at 13:27   View User's Profile U2U Member Reply With Quote
Check the earths on the gearbox, alternator/starter and fuel rail mate
reecegsi
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Registered: 16th Mar 11
Location: birmingham
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4th Mar 12 at 15:43   View User's Profile U2U Member Reply With Quote
Thin black wire connected? Does ecu power up? Relay click? Got the red off loom to battery?

[Edited on 04-03-2012 by reecegsi]
Davejs
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Location: Wiltshire
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4th Mar 12 at 15:54   View User's Profile U2U Member Reply With Quote
Hi all earths have been checked, the ign live wire is connected, I'm getting volts in the footwell and the purple relay clicks, ecu power up?? Ive got ign lights on clocks but no ecu light, they dim when i try to crank but it wont even crank!! It's as if no power is getting to the starter moter I'm puzzled because its so close to going on the road!! I'm in Wiltshire if any 1 is close!!
reecegsi
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Registered: 16th Mar 11
Location: birmingham
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4th Mar 12 at 17:10   View User's Profile U2U Member Reply With Quote
Battery charged?
corsa-vxr
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Registered: 15th Apr 11
Location: ayr
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4th Mar 12 at 17:13   View User's Profile U2U Member Reply With Quote
was it originally a 1.0 shell by anychance
Davejs
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Location: Wiltshire
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4th Mar 12 at 17:46   View User's Profile U2U Member Reply With Quote
Yea battery is charged and it's a 1.4 sport shell something must not be right somewhere
mex
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Registered: 25th Apr 10
Location: East Yorkshire
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4th Mar 12 at 18:34   View User's Profile U2U Member Reply With Quote
starter motor knackered ? try bench testing the starter motor and see if it engages and spins
corsa-vxr
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Registered: 15th Apr 11
Location: ayr
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4th Mar 12 at 19:05   View User's Profile U2U Member Reply With Quote
try bump starting the car see if it runs
FlaFFy_91
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Registered: 30th Sep 08
Location: Formby, Merseyside
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4th Mar 12 at 20:35   View Garage View User's Profile U2U Member Reply With Quote
Id say try bump starting it and see if it runs then. Might just be your batterys fudged.
fazza
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Location: Plymouth
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4th Mar 12 at 20:54   View User's Profile U2U Member Reply With Quote
either battery is fudged or an earth is dodgy or missing.

only reason why it would dim.

Oh and how come the purple fuel relay is clicking? standard gsi/sport relay is purple iirc, a c20xe is black and bigger
Davejs
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Location: Wiltshire
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4th Mar 12 at 21:12   View User's Profile U2U Member Reply With Quote
The car is on blocks at the mo. The battery could be knackered, i will put a jump pack on in the morning and try but it's doing my head in!! I meant the purple relay by the glove box is clicking, the fuel pump relay is black by the 9 pin plug in the footwell, just doesn't seem to be getting any power to starter motor or fuel pump???
corsa-vxr
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Registered: 15th Apr 11
Location: ayr
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4th Mar 12 at 22:07   View User's Profile U2U Member Reply With Quote
Nt 100percent certain on this but purple relay undr glovebox is fuel pump relay on 1.0 and 1.2 16v a always thought relays in sports were in drivers side cud be completely wrong in that point but going on that theory if its a sport shel you shud have the xe relay clicking and not original corsa 1 as in 1.0 etc u cancel out the 1under glovebox but you dnt need to touch anythng over that side on sport shells wel ive never in al the 1s ive converted Go to search and type in c20xe into 1.2 16v help as im on my fone and you wil c what i mean with relay under glove box
Davejs
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Registered: 4th Aug 11
Location: Wiltshire
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5th Mar 12 at 15:07   View User's Profile U2U Member Reply With Quote
Update, I have new battery fuel pump is priming but still no crank when I flick the key, dash lights still go dim??
Liam-Wilko
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Registered: 6th Mar 08
Location: Sunderland, Tyne and Wear
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5th Mar 12 at 15:10   View User's Profile U2U Member Reply With Quote
sounds like an earth some were may be broke or dodgy check yar full loom mate
fazza
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Location: Plymouth
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5th Mar 12 at 18:56   View User's Profile U2U Member Reply With Quote
lights going dim is a poor earth

have a good check over your wires.

what earths have you got fitted?

what wires have you connected
Davejs
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Location: Wiltshire
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5th Mar 12 at 20:37   View User's Profile U2U Member Reply With Quote
There's an earth to battery try from gearbox, 1 from battery negative lead and the 3 on the fuel rail, I haven't checked starter motor yet...and all wires are connected in footwell correct, well what all the conversion guides say!! I might sound thick but how do you check if the earth is good or not??
fazza
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Location: Plymouth
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5th Mar 12 at 20:44   View User's Profile U2U Member Reply With Quote
do you have the earth on the alternator?
fazza
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Location: Plymouth
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5th Mar 12 at 20:49   View User's Profile U2U Member Reply With Quote
the ign live wire in the bay is connected yes?

do you have an eml light
Davejs
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Location: Wiltshire
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6th Mar 12 at 08:59   View User's Profile U2U Member Reply With Quote
The alternator is earthed and the ign live is connected in the engine bay, no eml light on dash which I think is strange??
fazza
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Location: Plymouth
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6th Mar 12 at 09:11   View User's Profile U2U Member Reply With Quote
list what wires you have connected in the footwell.

The red live for ECU is going to battery isnt it?
reecegsi
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Registered: 16th Mar 11
Location: birmingham
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6th Mar 12 at 11:46   View User's Profile U2U Member Reply With Quote
I asked all them in my previous post i would say have you connected starting and charging loom back up? has back of starter motor got the red connected?
mon3y1
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Registered: 20th Aug 11
Location: Margate, Kent
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6th Mar 12 at 13:06   View User's Profile U2U Member Reply With Quote
check all of your wires mate
green to green (rev counter)
brown yellow to brown yellow (diagnostic wire)
brown white to brown white (diagnostic wire)
Blue to blue (water temp sensor)
brown blue to brown blue (motronic light on dashboard)
Thick blue red to thick Blue red (fuel pump)
thin blue red to thin blue red (fuel pump relay)
black wire to black wire from engine bay (ignition switched live)
earth to gearbox 3 earths on fuel rail from loom and alternator earth
reecegsi
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Registered: 16th Mar 11
Location: birmingham
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6th Mar 12 at 16:13   View User's Profile U2U Member Reply With Quote
Plus ^
Red wire off xe loom to battery!
Starting and charging loom on? Have you got the red on back of starter motor?
FlaFFy_91
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Registered: 30th Sep 08
Location: Formby, Merseyside
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6th Mar 12 at 16:35   View Garage View User's Profile U2U Member Reply With Quote
plus the earth wire off the front of your gearbox. I say wire its like a ribbon that comes off the front of your gearbox. Has to be attached. Jamie c had the same problem of it not starting just down to that one earth

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