Carbon Clean

[frasermk5]

Been getting rough start up and misfire at idle, took it to a VW Indy and they have concluded that the intake valves are carbonned up and need cleaning. £457 for either sodium blast or walnut blast, sound about right in terms of price?

[Clarkj93]

I've seen a few places do it for 350 before but also seen it done for well over 500 just depends on who's doing it. Woukd say that's an OK price.
FYI Rtech have been doing a deal for a while now where they will do a carbon clean, injector cleaning and a tune for 650, bargain price really. Think AwesomeGTI are one of the ones I've heard doing just a carbon clean for 350 from memory? If either of those places are near-ish you that is.

[rich83]

Been getting rough start up and misfire at idle, took it to a VW Indy and they have concluded that the intake valves are carbonned up and need cleaning. £457 for either sodium blast or walnut blast, sound about right in terms of price?

Does that price include replacing all the injector seals?

[frasermk5]

Yeah so been quoted £457 for carbon clean, and replacement of seals (injector seals etc)

[rich83]

Yeah so been quoted £457 for carbon clean, and replacement of seals (injector seals etc)

Bit pricey I think. AKS are at £370  for the same job

[frasermk5]

Im in Norwich so bit far!

[rich83]

Im in Norwich so bit far!

I wasn't suggesting using them (although they are of course excellent), I was just giving you an example of pricing from a VW specialist. 

[frasermk5]

Thanks mate, fingers crossed this will solve my problems!

[ald1717]

sounds a bit pricey, walnut blast at my local indi was £250,

[rich83]

Thanks mate, fingers crossed this will solve my problems!

I've never heard of gunked up intake valves causing misfires at idle.

Did they say "yes it's definitely that and cleaning them will sole the problem" because if they didn't say that then be prepared to still have the issue once they have been cleaned.

[pudding]

Thanks mate, fingers crossed this will solve my problems!

I've never heard of gunked up intake valves causing misfires at idle.

Did they say "yes it's definitely that and cleaning them will sole the problem" because if they didn't say that then be prepared to still have the issue once they have been cleaned.

Too long and boring to go into detail, which no one reads anyway, but the cliff notes:

Cold starts and warm up uses a different injection mode. Severe intake restriction DOES cause misfires.

It's more common on the EA888 engine, but it can also happen on the EA113 if the build-up is bad enough.

[rich83]

Thanks mate, fingers crossed this will solve my problems!

I've never heard of gunked up intake valves causing misfires at idle.

Did they say "yes it's definitely that and cleaning them will sole the problem" because if they didn't say that then be prepared to still have the issue once they have been cleaned.

Too long and boring to go into detail, which no one reads anyway, but the cliff notes:

Cold starts and warm up uses a different injection mode. Severe intake restriction DOES cause misfires.

It's more common on the EA888 engine, but it can also happen on the EA113 if the build-up is bad enough.

Interesting…. Honestly not something I have heard happen, although maybe most have the valves cleaned before this becomes an issue.