If it's not the DV or the coil packs what is it? - Update and confused!

[alexperkins]

But it was when I fitted the plugs 

Hopefully a new set of NGKs will get rid of the little misfire I appear to sometimes get on idle.

[Saint Steve]

I have always had bosch plugs, and have had no Spark plug issues .... just lots of other problems , non being duff plugs..

[jamma]

I have always had bosch plugs, and have had no Spark plug issues .... just lots of other problems , non being duff plugs..

  Change those plugs now before its too late  

[Saint Steve]

 

Cars on its 3rd set of boshe plugs, changed every 20k and she's just turned 60k. mapped for 30k.

[jamma]

Cars on its 3rd set of boshe plugs, changed every 20k and she's just turned 60k. mapped for 30k.

Just think of all that power you are losing , it makes my heart bleed 

[Saint Steve]

No that's the remap that causes power loss 

[brookesb32]

So the concensus would be that to hopefully sole the hesitation /stuttering under acceleration would be to change my spark plugs, which annoyingly were only changed by VW back in may grrr?  

[jamma]

So the concensus would be that to hopefully sole the hesitation /stuttering under acceleration would be to change my spark plugs, which annoyingly were only changed by VW back in may grrr?  

Yes , mine were changed by VW to new plugs 2 months back , bin them and get NGK. Maybe there was a fault with all the bosch ones produced this year 

[brookesb32]

sooo i am now even more confused than before. Bought the new NGK spark plugs and set about changing them this morning, until i got the first of the old plugs out and found....


..... that it was also an NGK spark plug - with the new part number so exactly the same as the ones i just bought  (also the coil packs are the new ones too)

So i took a pic or two to show you guys, but imagine that this amount of blackness is completely normal? didnt see any water or moisture either.






Not sure where that leaves me now - still wonder if it could be the PCV??

Help it is driving me crazy trying to work this out 

and then just to make my day i found this rust on my arch - although i hear this should be covered under the paintwork warranty?

[brookesb32]

Another update  

After visting vwrascal (Dan) from the forum to buy the middle bit of the front splitter that mine was missing, was discussing my hesitiation problem and he said he had similar and he could do a VCDS scan for me (legend!) so after a tense moment it came back with says that there was a problem with the inlet manifold runner. Apparently it can get stuck and cause hesitation. I just hope that the hesitation doesnt come back (seemed a lot better on the trip back, although thought i felt a little still but much better) as the intake flap motor unit it rather expensive so i am told  

Think it is the round part at the front of the engine but might be wrong.
This is the code that came up too - -012599 - Intake Manifold Runner Control: Basic Setting not Completed




Dan was kind enough to do the reset recommended by the VCDS for me, and hopefulyl that will solve the problem

[Saint Steve]

It won't......

Have you done the basic settings as it says?

My intake runner has a mind of its own, for weeks won't show a fault, then it will flag up an "implausible " signal once, and vanish again for another week or so.

[brookesb32]

It won't......

Have you done the basic settings as it says?

Yes, the VCDS came up with two possible fixes, one was doing the basic setting reset and the other was replacing it, so we went with the first one 

Rescanned it and no faults at all came up.

[Saint Steve]

I would recheck it in a couple of weeks to see if it's returned, but if it does, it's no biggy.

[brookesb32]

I would recheck it in a couple of weeks to see if it's returned, but if it does, it's no biggy.

well that is good to hear - the hesitation/stuttering is rather annoying though, so hope it stays away! Dan said he had the same problem on his too, doing the basic setting made his fine for 6 months then he had to do it again, but had nothing since for over a year, so here is hoping that it doesnt! 

[brookesb32]

I would recheck it in a couple of weeks to see if it's returned, but if it does, it's no biggy.

and you would be correct Steve, starting hesitating again tonight 

got a feeling the only way to fully fix will be the part replacement