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Author c20xe into 1.2 16v help
reecegsi
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Registered: 16th Mar 11
Location: birmingham
User status: Offline
31st Jul 11 at 22:07   View User's Profile U2U Member Reply With Quote

Hello
i am converting my sxi to a c20xe im having trouble with wiring i remember seeing a guide of some sort for this model as its different to others cuz of loom in bay and i cant figure out what to do with the left over wires

any help or links to guides for this model conversion much appreciated

thanks
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
User status: Offline
31st Jul 11 at 23:10   View User's Profile U2U Member Reply With Quote

This seems to be a regular thing coming up now.

So Guide to fit a c20xe into 1.0 12v or 1.2 16v Corsa

After removal of the original engine, the ecu plug is in the bay like so...



Along with another plug which runs injectors on the original engine and had oil pressure wire on it.

Really thick Red/Blue Is not used.
Blue/green oil pressure to xe one

Now depending on the xe loom you have, most have the connections inside the car, otheres in the engine bay.

You need to cut this plug off and pull the wires back through into the car from in the drives footwell under the dash like so...



I would leave the thin black wire off this plug in the bay, as thats where the ignition live is on the xe loom.

On this loom you should have:

Blue/red
Blue/red Slightly thicker.
Brown/white
Brown/red
Brown/black
Brown
Red/blue
Red
Brown/blue
Black
Green (Not pictured)
Blue (Not pictured)

And your xe loom should look like this if its got its original plugs, most don't nowadays.



So now here we go..

Wiring colours are as follows:

XE loom

Green - revcounter feed, wire to green on corsa

Brown/Blue - ECU light, match to corsa loom

Brown/White - Diagnostics, match to corsa loom

Brown/Yellow - Diagnostics, brown and black on corsa

Blue/red (thick) - Fuel pump feed, Blue/red Slightly thicker on corsa

Blue - Coolant temp sensor feed for dash clocks, match to loom

Red/White - Autobox, unused in conversion

Red/Blue (thin) - electronic speedo feed, match to corsa plug

Red (large) - Battery +ve

Black (thin) Should be at the end of injector loom on xe, match to thin black we left in the bay earlier

Black/green - Aircon, unused in conversion

Now to get your fuel pump working you need to remove the glove box, and to the left there should be 3 relays like this.



One on the right has,
2 thick red/blue
1 thick red
1 thin red
1 black brown

And the one on the left,
2 red/blues, one slightly thicker than the other You need to remove the relay and bridge over these wires with a bit of wire and 2 spade connectors
1 red
1 brown red

This should have your c20xe running.

[Edited on 31-07-2011 by Linch]

[Edited on 01-08-2011 by Linch]
.Matt
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Registered: 28th Jan 09
Location: Kent
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1st Aug 11 at 12:14   View User's Profile U2U Member Reply With Quote

Linch maybe you should write that up into a proper tutorial?

Really good information there, Will help a lot more people now.

[Edited on 01-08-2011 by .Matt]
reecegsi
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Registered: 16th Mar 11
Location: birmingham
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1st Aug 11 at 16:54   View User's Profile U2U Member Reply With Quote

Cheers mate great help !!
Few more questions thoe lol as for the 1.2 loom there is a couple more plugs next to the wires that you connected to the c20xe are these left blank???
My xe loom connector is different to urs mines just a black block with the wires you have mentioned coming off rail loom??
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
User status: Offline
1st Aug 11 at 17:14   View User's Profile U2U Member Reply With Quote

Do you know what car the loom came off?
reecegsi
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Registered: 16th Mar 11
Location: birmingham
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1st Aug 11 at 20:45   View User's Profile U2U Member Reply With Quote

Yes it came out of a calibra the bloke said ??? All the wiring is in the bay thoe not like usual redtops when there in the footwell
Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
User status: Offline
2nd Aug 11 at 14:43   View User's Profile U2U Member Reply With Quote

in that case leave the ecu wires in the bay and make your connections there.
reecegsi
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Registered: 16th Mar 11
Location: birmingham
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2nd Aug 11 at 15:56   View User's Profile U2U Member Reply With Quote

Ok then i checked my wies out of that black block and there is these wires:
thick red
brown with blue stripe
black
blue
blue with red stripe
green
white
black with yellow stripe

some are different to ur ones do what would these ones be all on xe loom
reecegsi
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Registered: 16th Mar 11
Location: birmingham
User status: Offline
2nd Aug 11 at 16:13   View User's Profile U2U Member Reply With Quote

Sorry the bottom of that last post is meant to say some are different colours to urs so what would i do with these ones ??? All wires on xe loom and the relays i have 4 in a row from left purple, black, purple and green???????


Thanks
jay26
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Registered: 22nd Feb 08
Location: North Lincolnshire
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24th Jan 12 at 18:07   View User's Profile U2U Member Reply With Quote

Quality write up that mate
monkeytwizzel
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Registered: 10th Aug 11
Location: Chard, Somerset
User status: Offline
8th Feb 13 at 21:26   View User's Profile U2U Member Reply With Quote

What have you done with the wires from the removed engine that are left over?i believe it will be the loom part that is pointing up next to the brown wire!
It might be handy for someone to do a complete how to guide for the type 2,radiator to use,eps fitment + wiring,loom wiring maybe even a home modified big bearing hub conversion how 2.
Will earn someone a few gold stars maybe even a pint

[Edited on 08-02-2013 by monkeytwizzel]
beavisredtop
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Registered: 13th Dec 10
User status: Offline
10th Feb 13 at 21:14   View User's Profile U2U Member Reply With Quote

What is meant by red large + ve ?

 
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