Lumpy idle

[northyracing]

Think I might just put into a vw specialist and see what they can find at lest they should have all the up to date equipment to find the problem

[MightyMullet]

Any news on this?
Mine started doing this yesterday, sat still it hunts, sometimes quite badly, the clocks dont move but the engine rocks about quite abit. When cruising about its fine, when you give it a boot full its also fine. If you let it pull itself along in gear itll go really lumpy. It occasionally spikes to about 2 by itslef, does it hot or cold, also and if you try and hold it at revs (while stationary) (i tried 2k) it will drop and raise all by itself.
Irritating as im suposed be driving 500 miles on monday morning . Although its fine under load im concerned i wont get good fuel return. Anyone noticed bad fuel economy?

[MightyMullet]

Oh yeah forgot to say, mine is 2006 with 42k on the clock and FVWSH.
Heres a cheeky video i made, is anyone elses like this?

[Saintsteve]

Oh yeah forgot to say, mine is 2006 with 42k on the clock and FVWSH.
Heres a cheeky video i made, is anyone elses like this?

Sounds like an injector. If you've done the PCV already, then sounds like its the same as mine did.

You might find by turning on the aircon, increasing the load slightly it'll feel slightly better, but its a sign one injector is on its way out.

[MightyMullet]

Wow quick reply, so it should be ok to use for the next few days? Its still got vw warranty so ill take it back to them later in the week, no doubt they wont find a fault as usual. I havent changed the pcv but i did the little test (briefly taking the oil cap off) and it ran like a sack of turd so that means the pcv is fine yes? That was about 2months ago.
If it comes to it i have breakdown cover but im away until thursday using the car.

[Saintsteve]

Wow quick reply, so it should be ok to use for the next few days? Its still got vw warranty so ill take it back to them later in the week, no doubt they wont find a fault as usual. I havent changed the pcv but i did the little test (briefly taking the oil cap off) and it ran like a sack of turd so that means the pcv is fine yes? That was about 2months ago.
If it comes to it i have breakdown cover but im away until thursday using the car.

Yes it will be ok, mine started as lumpy cold starting, but then turned into that stuttering when Up to temperature . I could get it to splutter up to 1800rpm just by holding the revs in neutral, if you listen closely. Logging live misfires using VCDS also highlighted the cylinder that was causing mine, which was cyl 4.

[MightyMullet]

Awesome mate, thanks for the help means alot, it has strugled a few times starting up from cold recently, thought it was odd. Would this have thrown a fault code? So vw (the pros   ) can then find the problem?

[Saintsteve]

It may show a missfire, but may not show up as an error. Only if they do a live missfire count,(blocks 15+16)  it will show each time the stutter happens, and which cylinder to further investigate.

HTH

[edd666999]

mines doing this, when i log the above on idle its cylinder 2.

[northyracing]

mines doing this, when i log the above on idle its cylinder 2.

Mines exactly the same can count 4 in the matter of 20 seconds

[edd666999]

mines doing this, when i log the above on idle its cylinder 2.

Mines exactly the same can count 4 in the matter of 20 seconds

mine counts to 20 

[northyracing]

mines doing this, when i log the above on idle its cylinder 2.

Mines exactly the same can count 4 in the matter of 20 seconds

mine counts to 20 

Bloody belly mines not that bad lol do you find when driving at low speed it feels very juddery 

[Saintsteve]

mines doing this, when i log the above on idle its cylinder 2.

Mines exactly the same can count 4 in the matter of 20 seconds

mine counts to 20  

Bloody belly mines not that bad lol do you find when driving at low speed it feels very juddery  

New injector is the cure to a smooth future    

[edd666999]

mines doing this, when i log the above on idle its cylinder 2.

Mines exactly the same can count 4 in the matter of 20 seconds

mine counts to 20 

Bloody belly mines not that bad lol do you find when driving at low speed it feels very juddery 

erm no, i wouldnt say so.

I cant decide if i should just fit a new injector or try terra clean 1st

[northyracing]

I'm going the new injector route just need to find part numbers for parts I need so I can get a price and go from there