tom_simes
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Organiser: South Wales
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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A couple of weeks ago, I had hesistation under acceleration, and it got pretty bad within 400 miles, which was all in one day of driving.
The next day I checked the spark plugs, and they were pretty black so chucked in a new set and it cured the problem.
Now this week, its come back, only this time the car hesistates when holding a constant speed - its sort of like its kangarooing along the road. When accelerating or decelerating, its fine.
Any ideas?
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tom_simes
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Organiser: South Wales
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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ttt
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RCS
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Registered: 26th Jan 05
Location: Lichfield/Dundee
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EML at all?
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tom_simes
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Registered: 12th Jan 05
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Nope, not at all.
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tom_simes
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Registered: 12th Jan 05
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Nobody else got any ideas?
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RCS
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Registered: 26th Jan 05
Location: Lichfield/Dundee
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Aren't you an engineer? 
Leads
Coilpack
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tom_simes
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Organiser: South Wales
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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quote:
Originally posted by RCS
Aren't you an engineer?
Leads
Coilpack
Cheeky 
Indeed I am  I did think of the coilpack, but didn't want to suggest it - you know these things go. I suggest coilpack, everyone agrees as its simpler, I buy a coilpack, it doesnt work
Leads were changed about 5k ago, so shouldn't be them, although I may try them next as I priced up a coilpack today - local motorfactors wanted £99.52 + VAT or something, and I don't fancy that
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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My saxo started doing this and it was the problem that eventually made me sell it
just joined the M4 from the M50 at 1am, pissing it down, and as you said accelerating was fine then as soon as I stopped and maintainded speed it was miss-firing very badly. Limped to Cardiff and parked up for the weekend, drove 200 miles home with it the same and took it to the garage and he diagnosed it as the coilpack......... So I sold it
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RCS
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Registered: 26th Jan 05
Location: Lichfield/Dundee
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Haha you just need to do a bit of reverse engineering my friend.
It's either going to be an ignition fault or something affecting the fuelling. Ignition faults are easier to elimanate.
My Vectra is doing the exact same thing, I just can't be arsed looking into it!
Just get a second hand coilpack, you'll pay £10er max!
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tom_simes
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Organiser: South Wales
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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Coilpack is probably a good shout then Matt - one of my mates had a similar problem with his Fiesta, although his did it under acceleration.
He changed the plugs, and it must have improved the spark slightly as it was perfect for 3 weeks, but then came back again. He changed the coilpack (for a measly £40 brand new) and its been fine since.
I just need to find a cheaper one then!
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tom_simes
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Organiser: South Wales
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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quote:
Originally posted by RCS
It's either going to be an ignition fault or something affecting the fuelling. Ignition faults are easier to elimanate.
I did realise that I haven't changed the fuel filter in the 3 years I've owned it, and recently put a bottle of Redex through, so hopefully thats just clogged up the filter.
If I'm right, you can check a coilpacks operation from reading its resistances, can't you? Although being an intermittent fault, it may not show up anyway!
Cheers for the help Rich (I think that's your name )
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geth_16vsport
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Registered: 7th Jan 08
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this sound what was happening to my car on the MAP sensor one of the wires was snaped and it was running like a cunt
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Steve X16XE
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Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
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quote:
Originally posted by tom_simes
Now this week, its come back, only this time the car hesistates when holding a constant speed - its sort of like its kangarooing along the road. When accelerating or decelerating, its fine.
Mine is doing this too. I found a way round it.... boot it all the time. Problem solved! 
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tom_simes
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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quote:
Originally posted by Steve X16XE
quote:
Originally posted by tom_simes
Now this week, its come back, only this time the car hesistates when holding a constant speed - its sort of like its kangarooing along the road. When accelerating or decelerating, its fine.
Mine is doing this too. I found a way round it.... boot it all the time. Problem solved!
Sort of did that in the roadworks on the M4 on Saturday Steve
It will hold speed fine at 80, but doing 50 or so, it hesistates, so i slowed to 40, then slowly accelerated up to 60ish and the car in front, then slowed again......
Did that for about 6 miles in a contraflow
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Kenzie
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Registered: 16th Sep 07
Location: Burnley
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So does this kangarooing only happen when you only have your foot slightly on the accelerator? i.e. just 'tickling' it?
Mine does the same every now and then...
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chunky_nb
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Registered: 19th Jan 07
Location: Bridgend S.Wales
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quote:
Originally posted by geth_16vsport
this sound what was happening to my car on the MAP sensor one of the wires was snaped and it was running like a cunt
wheres the map sensor as mine is running poo, low down revs is flat and hesitant when accelerating, dropping down the revs it makes an inconsistent rumbling noise, when i start it from cold or warm it sits on 500revs till i bring it up to 1200 (before the choke kicks in)
sorry im hikacking your thread tom
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VegasPhil
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Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
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Check the Air Filter too
Corsa 2.0 16v Vegas - Sold
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