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Author My Red GSi C20LET...She runs again!!
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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12th May 09 at 17:54   View User's Profile U2U Member Reply With Quote
Nope been tested all fine
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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13th May 09 at 10:32   View User's Profile U2U Member Reply With Quote
Not going well, just got a phone call saying i need a new ECU. Thats whats causing the overfueling
fazza
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Registered: 7th Feb 08
Location: Plymouth
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13th May 09 at 10:34   View User's Profile U2U Member Reply With Quote


u running standard ecu mate?

if so then upgrade to one with some chips
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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13th May 09 at 10:37   View User's Profile U2U Member Reply With Quote
im not sure, it has a superchips sticker on it, but the lad i bought it off said it didnt have. im running out of money now
fazza
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Registered: 7th Feb 08
Location: Plymouth
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13th May 09 at 10:45   View User's Profile U2U Member Reply With Quote


unsure how much you can pick an ecu up for.

try pm'ing cemex or turbochris on migweb they will have that sort of thing laying about
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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13th May 09 at 10:48   View User's Profile U2U Member Reply With Quote
Ok will do
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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14th May 09 at 09:55   View User's Profile U2U Member Reply With Quote
Ecu has been tested on another LET, absolutely fine.
tried a Coolant temp sensor still no go, really am running out of options, and even considering throwing the fucking thing on eBay

Lost all enthusiasm for it now. so im going to store it for a while.

Bad times
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
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14th May 09 at 09:57   View User's Profile U2U Member Reply With Quote
Mine over fuels a bit from cold, might be the same thing? I also have superchip chips in my ECU.
FruitBooTeR
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Registered: 18th Jan 07
Location: Wolverhampton Drives: S15
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14th May 09 at 09:58   View User's Profile U2U Member Reply With Quote
Whats the actual problem mate is it just overfueling?

If its not major overfueling then its fine...running a little rich never harmed anyone
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
User status: Offline
14th May 09 at 10:00   View User's Profile U2U Member Reply With Quote
Aye, doesn't bother me really.
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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14th May 09 at 10:02   View User's Profile U2U Member Reply With Quote
its over fueling so much its not running.

its not:
Coil
leads
plugs
dizzy
injectors
ecu
relay
fuel pump
fuel pump reg
crank sensor
coolant temp sensor
lambda sensor


i wouldnt mind if it over fueled a little bit to the point that it would run then i could sort it, but it wont run anymore.
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
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14th May 09 at 10:03   View User's Profile U2U Member Reply With Quote
It did run though didn't it?

What have you change from then to now?
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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14th May 09 at 10:05   View User's Profile U2U Member Reply With Quote
it ran, drove it for 10 mins, then died, wouldnt start again untill cold, then when it did start it was lumy as fook and then stalled again. now it wont even start.
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
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14th May 09 at 10:06   View User's Profile U2U Member Reply With Quote
If it wouldn't start when hot that would make me think it was the lamba at fault. Did you replace the coolant temp sensor for the right one? There are two different types available.
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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14th May 09 at 10:08   View User's Profile U2U Member Reply With Quote
i tried the one off my X16XE, im going to try another lambda today, also might go to motorfactors and get a LET temp sensor. if these fail i will be selling the damn thing.
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
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14th May 09 at 10:09   View User's Profile U2U Member Reply With Quote
I think the coolant temp sensor off the 16xe should've been the same. When I asked for a coolant temp sensor they didn't ask which one I wanted so gave me a black one but I think you'll need a blue one.

[Edited on 14-05-2009 by Olsrey]
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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14th May 09 at 10:13   View User's Profile U2U Member Reply With Quote
yeah theyre both blue on my engines
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
User status: Offline
14th May 09 at 10:15   View User's Profile U2U Member Reply With Quote
You're ECU isn't the immobiliser type is it?
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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14th May 09 at 10:17   View User's Profile U2U Member Reply With Quote
no, also i put the ECU in a LET nova and it was fine.
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
User status: Offline
14th May 09 at 10:18   View User's Profile U2U Member Reply With Quote
Are there any ECU fault codes at all from your engine? Did the auto eletriction change the loom in anyway? Be-it fixing etc?

EDIT: Also was it running before it went to the auto eletriction?

[Edited on 14-05-2009 by Olsrey]
willay
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Organiser: South East, National Events
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Registered: 10th Nov 02
Location: Roydon, Essex
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14th May 09 at 10:23   View Garage View User's Profile U2U Member Reply With Quote
take it to someone who knows what they are doing Mike!!!
john_c20xe
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Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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14th May 09 at 11:02   View User's Profile U2U Member Reply With Quote
what fuel pump are you using? you sure you got fuel pressure?
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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14th May 09 at 11:02   View User's Profile U2U Member Reply With Quote
I have done that willay, and ive just taken off the brand new distributer to make sure the arm is pointing to the right prong at tdc, and found that the brand new dizzy arm has been smashed inside the housing
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
User status: Offline
14th May 09 at 11:03   View User's Profile U2U Member Reply With Quote
Yes there is pressure, so much that it stoping the engine from turning, no fault codes anymore
willay
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Organiser: South East, National Events
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Registered: 10th Nov 02
Location: Roydon, Essex
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14th May 09 at 11:09   View Garage View User's Profile U2U Member Reply With Quote
yeah but they said the ECU was foobarred where it clearly isnt? get someone who knows their engines to sort it out.

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