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Lumpy on Start

Funkyfin2000

Black Leon Cupra R 280bhp
Oct 6, 2005
2,477
0
Stafford, Staffordshire
Hi Guys,

Got a LCR and it has a 100Cell race cat, Downpipe and Blue Flame Zorst...

Basically occasionally on start up its a bit lumpy....only happens for about 5 secs and then fine........

Is it coz ive got the zorst, and cat and dowpipe? but wouldn't have thought so? Nothing shows in Vag.com at all....

any ideas?

Rich
 

RobM

Back from the dead...
Sep 27, 2006
4,982
3
Southampton
How do your spark plugs look? And when was the last service? Could be nothing, just one of those odd gremlins, but could be some sort of blockage that clears quickly (fuel filter)? Could be an auto-choke problem?
 

smoothuk

SmoothNAV
Aug 26, 2005
589
0
Essex
Standard plugs are changed at 40k afaik but on a mapped R i would change at 30k. Standard plugs are also fine so i have been told, and i have no troubles on a ST2 LCR with them, but i think is it the denso iridium ones, that are ment to be good? I (touch wood) never have any problems from start up with full BF system.
 

cliveyp

LCR Abuser
Jan 11, 2006
219
0
Worcester
Just noticed this Rich, was suprised to hear it, never had any lumpiness when i had it at all. :( Plugs were changed at the last service IIRC.
 

LC20vtGav

Guest
I noticed mine was lumpy for a month or so on startup, then one of my coilpacks went, seemed fine after the coilpack was replaced.
 

Big_daddy

Going going gone.....
Oct 20, 2006
3,930
0
Brummy
Had denso iridium in my leon, month later, the plugs went and the 3rd coil pack also, funny thing was no fault was shown. The car felt ruff and sounded like a subaru.
Pop the coils out 1 by 1, if it dosnt make a diferent, the coil gone but check you plugs.
Had my denso plugs which only lasted 2month or less, waste of money, im now using NGK.
 

bentaw

Revo'd LCR
Oct 1, 2004
1,067
0
Hampshire
all lcr's i know of sound like and feel like that on start up until bout 3min down the road when they start to warm up nothing to worry about
 

Funkyfin2000

Black Leon Cupra R 280bhp
Oct 6, 2005
2,477
0
Stafford, Staffordshire
this isn't dodgy sound on start up, its hard to start sometimes (not every time) sometimes it has to turn over about 4-5 times and then is lump once started, ie jumpy then settles down!

hard to explain!
 

AdamRoutley

Use The Force!!
Feb 22, 2007
1,827
1
Walsall
www.myspace.com
mites really loud on start up but only for about 4-5 mins when the revs are at the higher stage. if i drive it straight away it is lumpy (petrol FR) but if i let the revs drop (and the engine tone lower) then its fine. iirc your not supposed to drive it when the revs are high to begin with? your meant to wait...correct me if im wrong..

adam
 

chriswilks

Astra CDTi track car
Jun 3, 2007
330
0
warrington cheshire
mine sounds like a challenger tank also on start up most vag 18t's do my mates tt is the same.the idle becomes higher for a few minutes then resumes to normal.i remember when i first got my car thinking "is this a tdi??!!"
even new m5 sounds like a taxi when it starts up!!dont get why tho?!