dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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Nova's stilll failing emissions and still a bit burbly when cold like its not running properly, but after about 30 seconds its fine.
Any ideas anyone as i need to get through MOT.
Its had new ICV, AFM, Temp sensor, Knock Sensor, we've checked the wiring etc etc.
 got my car back but i cant fucking use it 
[Edited on 11-12-2007 by dan_c4rsa]
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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could be oxygen sensor,
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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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thats what im thinking but it doesnt seem to be knackered. I'll probs order one when i get it home.
Really fucked off
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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ive had this problem before on an escort, it turned out to be that the head gasket had the tiniest leak in it, so everytime i started the car up it would run shit then it would clear, but the problem didnt get any worse, but i changed the gasket and it ran fine after, i know its a long shot but you have to look at every possibility
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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 but has just been rebuilt so should be no problems
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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fair enough, or it could be bad earth to ecu,or a buggered ecu, and the ecu keeps on resetting it self everytime you switch the car on and off
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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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true.
but the car was running fine before conversion etc etc so cant be THAT buggered???
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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u would think so but there is always a time for something to go wrong, and this time it might be it, the only problem with sumthing like this tho, is that u want people on here to give u easy ideas to fix things but its never easy 95% of the time
all these things above are possibilites and usually the only way to find out is change it or check it, u cant rely on assumptions as alot people will tell you on here
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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 i know.
we're gone one by one through each sensor/fault we can think of but nothings curing it at all.
The car drives better as a result but emissions are still way too high....
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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id go for oxygen sensor and that redex additive that cleans your car out and get it hot when you put this stuff
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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 i'll try it mate when i get it home. then i'll give it a good thrash to its MOT
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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is it your mate that does the mots
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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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no.
he's just good with electrics.
edit - i do know someone round here that does them but he'd still fail it.
[Edited on 10-12-2007 by dan_c4rsa]
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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well my x14xe did this and all we did is shoved a rag in the exhaust with the probe and it restricted the flow coming out the exhaust so most of the gases stay in the pipe and reads that its burning off the gases effieciently,
this is wat the mot tester told me anyway and it worked
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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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thats illegal though right 
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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wats ur car registered as
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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illigal shmeegal, aslong as its got a mot with ok emissions then why worry.
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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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quote:
Originally posted by Torsa g
is it your mate that does the mots
the cars as a 1.4 on log book but thats why i need the MOT to change it and get new tax.
theyre testingnit as a 2 litre though
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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wat data are they putting in on the test machine
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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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ifind out when i get the print offs.
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Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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well they could be outting in data for a non cat engine or with cat
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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 but if the hydrocarbons are nearly off the scale on idle i dont think it would matter anyway
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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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whats worse is Dave A's probs not going to cover work needed on it if i take it to him as its electrical.......
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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do the basics first. wire up the EM light and go from there.
No parts replaced during the rebuild will affect the emmissions in any way whatsoever. Emissions and fuelling is controlled by the ecu so the fault must lie with the ecu, loom or a sensor. Post up the MOT emissions fail report.
by the state of the wiring behind the dash I would guess that a good session to sort out all of the wiring would also be a good idea. If I had the time to help free of charge and if you were closer I would do everything I could to try and get it sorted for you. I would start by doing what I have listed above 
[Edited on 10-12-2007 by Dave A]
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carnuts
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Registered: 28th Aug 05
Location: Hertfordshire
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if you disconnect the battery off my xe for half hour then put it back on first time its starts up it runs proper crap for 20 seconds then is fine but the emissions are high for a while then everything sorts itself out i would check your wiring mate
if that dont work try a mates ecu cause it really sounds like it isnt keeping any settings
[Edited on 10-12-2007 by carnuts]
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