Slight Misfire On Idle

[edition_30]

Since i have owned the car i have noticed a slight misfire on idle. Does not effect performance but just wondering what could be causing the issue.

Plugs were changed as part of 4th year service

[bacillus]

coil packs??

Get it logged with vcds to show what cylinder misfire is occuring and swap the coil pack from a cylinder that's not misfiring. If the misfire follows the "bad"coil pack then buy a new one.   

[edition_30]

Thanks buddy

[xxx_mojo_xxx]

coil packs??

Get it logged with vcds to show what cylinder misfire is occuring and swap the coil pack from a cylinder that's not misfiring. If the misfire follows the "bad"coil pack then buy a new one.   

If it's not the coil pack...then what else should one check?

[bacillus]

If it's not the coil pack...then what else should one check?

Could be a faulty injector if plugs and coil packs are ok.

[chowgar]

will a misfire always throw up a light on the dash?

 I seem to have a slight stutter sometimes on acceleration, coilpacks have just been replaced under recall and I see from the log book the plugs could do with being replaced.... but other than some slight stuttering there are no warning lights on the dash?

this seems to be a common occurance at the moment alot with those that have just had their CP's replaced under recall???

[Tfsi_Mike]

I've just changed all  4 coilpacks as I had a misfire on cyl3

Still spluttered a bit under load on the way home from work last night
and hiccup'd on idle still.

Plugs were only changed a few thousand miles ago.  It's chewing through plugs!
Ordering another set today, bloody thing 

Cyl4 continues to get alot of moisture in the 'coilpack hole'

[WILLZIE]

will a misfire always throw up a light on the dash?

 I seem to have a slight stutter sometimes on acceleration, coilpacks have just been replaced under recall and I see from the log book the plugs could do with being replaced.... but other than some slight stuttering there are no warning lights on the dash?

this seems to be a common occurance at the moment alot with those that have just had their CP's replaced under recall???

CP Recall???

[Tfsi_Mike]

will a misfire always throw up a light on the dash?

 I seem to have a slight stutter sometimes on acceleration, coilpacks have just been replaced under recall and I see from the log book the plugs could do with being replaced.... but other than some slight stuttering there are no warning lights on the dash?

this seems to be a common occurance at the moment alot with those that have just had their CP's replaced under recall???

l
CP Recall???

Revised coilpacks ending 'F' I think

[FamilyDub]

If it's not the coil pack...then what else should one check?

There are more things that could cause it and i've had all of these

* Do you still have a diaphragm-type diverter valve?  Change for piston-type 'Revision D' valve, part 06H 145 710 D?
* You've changed the coils - have you changed the sparkies?
* When was the last time you gave your car an 'Italian tune up'?
* Using the correct grade of fuel? 98+ RON?
* Is it 'hunting' for revs, i.e. dropping to 600, then peaking up to 1,500-2,000 rpm?  PCV might be kaput...

Hope you get it fixed.

[Tfsi_Mike]

If it's not the coil pack...then what else should one check?

There are more things that could cause it and i've had all of these

* Do you still have a diaphragm-type diverter valve?  Change for piston-type 'Revision D' valve, part 06H 145 710 D?
* You've changed the coils - have you changed the sparkies?
* When was the last time you gave your car an 'Italian tune up'?
* Using the correct grade of fuel? 98+ RON?
* Is it 'hunting' for revs, i.e. dropping to 600, then peaking up to 1,500-2,000 rpm?  PCV might be kaput...

Hope you get it fixed.

Useful reminder of the basics thanks 

Italian tune up? lol  - thrashing??

[FamilyDub]

Italian tune up? lol  - thrashing??

I wouldn't use the word 'thrashing'...    how about...  'sustained sporty driving', as the VW sales brochures call it!

[Tfsi_Mike]

Italian tune up? lol  - thrashing??

I wouldn't use the word 'thrashing'...    how about...  'sustained sporty driving', as the VW sales brochures call it!

Sorry, spirited driving.... 

[FamilyDub]

Italian tune up? lol  - thrashing??

I wouldn't use the word 'thrashing'...    how about...  'sustained sporty driving', as the VW sales brochures call it!

Sorry, spirited driving.... 

That's the one.