dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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already done matey my mate came over and we put is set on my car and he has 8mm leads too
still no luck 
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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hi Dan.
we had a similar problem when we first tried to start it after the rebuild, we fitted new plugs and checked all connections and it was down to something with the coil or distributor, but then after refitting it all it fired up absolutely fine so we checked for loose connections and it was fine.
vid sounds like its not running on all 4 cylinders to me, ignore the wires behind the dash not being connected as I had a look under there when the rev counter stopped working and it is a bit of a mess of wires and black tape, looks like someone has had a good play around under there.
what did the plugs look like when they were removed?
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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very sooty. 2 were damp, 2 had actual liquide around the base, and one slightly damp on the top arc if you get me.
As soon as i let my foot off the gas it simply cuts out.
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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sounds like too much fuel or not getting a spark.
If I had to guess I would try a new coil and dizzy setup, especially as we had a problem that went away after we had disturbed them.
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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well im confused to as why the car runs better if i keep me foot down a while???
Yeh well i might tow it to the MOT and just say stick a new Dizzy/coil on it for me. See what its like.
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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I had this same problem mate, it would fire then just about run then it wouldnt run after we switched of, so i changed crank,tempand fuel relay, as the relay gives the fuel rail a signal to fuel properly, mine now runs a treat,
please try all these three as im sure this is ur problem, the only thing is im not sure wat one sorted it but it could of been a combination of things, plus we had no engine light to
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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does it show up on diagnostic equipment? my mates having a gander now with his gadgets.
Are the relays on the ecu or in the wiring? New plugs/sensors too maybe?
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Adam-D
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Registered: 11th May 02
Location: Cheshire
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purple relay i think it is
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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the relay will be on the loom near the ecu, theres only one on the hole loom its black and got 6 or 7 pins on it ,
it is an c20xe were on about here isnt it
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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yeh mate.
I have a few black boxes by the ECU under the fuse box but i dont think there's any 7 pin ones.
Maybe some 4 and 6 but they each only have one/2 wires in each?
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Nic Barnes
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Registered: 5th Apr 04
Location: nowhere near ginger people
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some xe's had the fuel pump relay next to the coil.
oddly had same with mine ages ago although you could hear the relay buzzing like mad adn then car obviously would start to massively overfuel etc etc. new relay didnt cure it. i never ever found out what it was. one day it just stopped doing it and never returned. id checked everything, yet fixed nothing.
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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hmmm.
i duno if the lomos been tampered with or not due to a digi dash etc so not sure.
anyone got a pic.
Im utter SHITE at wiring, the best wiring i can do is change fuses and wire in headunits 
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VegasPhil
Premium Member
Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
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Change the Ignition Coil. It was the answer to mine only firing on 2 cylinders. 
Corsa 2.0 16v Vegas - Sold
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Nic Barnes
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Registered: 5th Apr 04
Location: nowhere near ginger people
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engine loom other than dash warning lights shouldnt have been touched to put a digi dash in
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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cheers muppet for the help
and ok phil yeh good idea, we're trying that next.
I think we have a spare double plug coil laying around if that would help.
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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and tbh i dont think the dash has been wired up as the indicator signals dont even light up while indicating......
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Simon_16v
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Registered: 14th Aug 06
Location: Yorkshire
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who wired the digidash in?
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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whichever owner had it before me
i only noticed the lights werent working on the dash when i'd given him the money lol. Oooops.
no biggy just means i dont know whether EML is on etc
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Simon_16v
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Registered: 14th Aug 06
Location: Yorkshire
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Ahh that could be abit shit.
Iirc the eml light should stay on with the keys on the acc position 
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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wiring behind your digidash is shockingly bad dan as I found out when I wired up the rev counter.
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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 yup lol.
im thinking of paying for a proffesinal car electronics company to put a fresh simple loom in it and tidy it all up when its fixed.
Not heard from me mate yet, which is probably goo dnews as he's not stuck.
So at the minute its either - bad wiring, coil/dizzy, or leads.
Then i duno - will be a trailer and off to Dave A again haha.
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Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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I had nearly the same problem. Running rough as fuck some of the time, then changed it's mind to all the time, ok on full throttle, shit on part throttle. EML light flickered when it was gonna fuck up. The fuel relay buzzed it's balls off. Sounded like it was running on 2. Tried all sorts to solve it.
Turned out it was a dodgy earth.
[Edited on 03-12-2007 by Dean_W]
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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im not loosing power from the battery or anything though.....
also checked gearbox earth, alternator earth and then there were two smaller ones to the right/top of the block that i had to bolt down and theyre all fine. any others to think of?
[Edited on 03-12-2007 by dan_c4rsa]
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Nic Barnes
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Registered: 5th Apr 04
Location: nowhere near ginger people
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you might not thoigh, the earth might just upset the voltagte readings from certain sensors the ecu needs
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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hmmm. i dont see what could have happened as it was all kushty before it went in...... who knows. Maybe somethings just buggered due to sods law.
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