LET into corsa

[let_nova]

whats this black wire for? there was a black wire in the old XE loom but not in the LET loom?
http://i244.photobucket.com/albums/gg34/incanova/stuff370.jpg

[MattBrown]

ECU switched live.

Or is it ecu perm live, 99% sure its switched.

[let_nova]

and the thick red? theres no thick red in the let loom either.
where do i join both?

[Shaun]

that black should join on top of gearbox into switched live i belive

unsure on red sorry, i bought a lead from twag when i done my let corsa

[let_nova]

http://i244.photobucket.com/albums/gg34/incanova/stuff373.jpg
http://i244.photobucket.com/albums/gg34/incanova/stuff372.jpg
http://i244.photobucket.com/albums/gg34/incanova/stuff371.jpg

this correct?

[AlexW]

Looks it.
What is the problem your having?

[let_nova]

engine is not turning over at all.

[AlexW]

Sure its not a ign switch problem? I presume the battery is charged?

[Adam]

Put a jump lead on the gearbox to the batt neg.

Youve probably missed off the earth cable from the batt to the starter motor, which corsas have.

[let_nova]

just tried that, no joy. also theres a plug on the corsa starting loom with black and yellow wire and a black and white wire?

[Adam]

Is 12v getting to the starter motor?

[let_nova]

must be, dont have a multimeter but i caught the red wire with the earth and it sparked.

[let_nova]

just tried -onto box and -v of battery
and +from battery to thick red on starter still no joy

[david dixon]

the black wire on the corsa loom is ignition live

David

[let_nova]

this needed for just turning the engine over? i have joined that to the single pin plug above box.

[MattBrown]

IIRC the blue with a white trace isnt needed for turning over.

And im sure its the alternator light, as opposed to the starter?

Take this off, and try it.

[let_nova]

the blue with white trace i have onto the alternator.

[Adam]

Just the red to the starter and the red/black to the solenoid is enough to get it turning over.

(Assuming its got a engine to chassis earth connection)

[MattBrown]

Big red to the big plug, black with red trace to the solenoid, there is no other wires needed to turn it over let.

Try a jump lead to the small red:)

[david dixon]

it shouldn't stop it turning over but it gives the ecu its signal, it connects to the clet loom black wire (single plug) the only starter wires are the black/red striped like nova, thick red to starter and maybe the thick brown from battery to block

David.

[let_nova]

just tried

earth from rail to chassis
+ from battery to starter and nothing

[david dixon]

are you getting a signal from the starter live from the ignition barrel?

[let_nova]

i will be honest. im crap with electrics.

[david dixon]

ok, do you have something long with a rubber handle? if so quickly try bridging the red on the starter to the starter ignition live, quick touch and see if it turns over.

David.

[let_nova]

starter ign live? what ones that? the thin black and red one?

[david dixon]

yes mate, quick touch to bridge them and see if it jumps as if its going to turn over or test the black/red with a multimeter to see if it gets power when you turn the key to try starting it

[let_nova]

ok, bridged them, nothing. but if i bridge the big red with the strap from starter to solenoid the starter spins slowly and doesnt catch flywheel

[david dixon]

sounds like its not pushing out, maybe knackered starter or wrong one!

David

[let_nova]

its your engine lol

[david dixon]

lol ha ha well in that case its fine

hmmmm i wonder why the starter wire form the ignition isn't working then.....its not immobilised is it?

David

[let_nova]

i took the xe out the corsa and fitted the LET. so im unsure.

[david dixon]

really you need to see if power is getting there when you turn the key, it doesn't sound like it but you never know... if its not you might have to check near the ignition barrel to see if the black/red has been cut and joined to another wire (maybe immobiliser) something sounds odd

[AlexW]

Imobliser wouldnt cause it to not crank if you bridged the fat red and the red/black.

Factory imobliser would have been removed with the old engine/fitting of the XE. After market alarm/imoblisers tend to have the fuel pump imoblised, Not the starter.

[david dixon]

i have seen it before on a nova xe conversion, very simular problem!

David

[AlexW]

really you need to see if power is getting there when you turn the key, it doesn't sound like it but you never know... if its not you might have to check near the ignition barrel to see if the black/red has been cut and joined to another wire (maybe immobiliser) something sounds odd

But if hes bridged it at the starter, it should turn over, The problem is most likly with the starter, Or dirty connections on the starter.

Im not trying to say your a lier, but im just saying things go wrong between cars (My nova was a damm great example!) and the connections could have got a bit rusty in transit.

[david dixon]

oh yeah i agree but its my engine thats just come out my astra which is why i dont understand it

David

[AlexW]

Aye i understand that, My bet is on a dirty connection, Maybe a bit of **** got in there when mr Let was moving it around/putting it in, That or where the earth goes is dirty.

Number of things it could be, all a pain in the **** to sort on the car down the back there!

[let_nova]

cheers for the help, cant understand why it wons turn over when i bridge it.

[Adam]

Starter motor has to be shagged if its getting 12v, 12v to the solenoid and has a good earth.

[david dixon]

obviously its getting some kind of power as its turning slowly, have you tried jump leads as earths?

[let_nova]

Yes, took another earth from rail to negative on battery and gearbox to chassis.

[let_nova]

it also has a clifford concept 650mk2 could this have caused problems when the battery was removed?

[david dixon]

yeah i would look into that mate, try a wire from the ignition where the black/red wire starts and put it to the solinoid on the starter then turn the key....chances are the clifford is also connected to the factory starter wire!

David

[let_nova]

it runs, guff starter. pal cam down and confirmed that it was knackred. swapped the spare over and it fired up lol

[david dixon]

hmmm a bit odd but at least its running!

David.

[let_nova]

yep, starter fecked.

cheers for all your help.

[AlexW]

Hehe, Told ya :p lol