Poor start to GTi Life !!

[Saint Steve]

^^ Have you replaced the PCV valve??

£35 fix, and will cure most idle issues.

[ansGTI]

Checked it - I can't blow in the opposit direction so I'm pretty sure it's OK.

The garage also reported they'd tested it the 1st time they had it but me being me, I didn't take their word for it so checked it myself the other week

[Keano]

if i were you. I'd replace the PCV.

I had an idling problem as you describe- was a right horrible bastard to be sat in.

Had the PCV and the Diverter Valve (revision D) replaced today and all is well 

Also. Has it been checked for boost leaks? Split pipes, hoses coming off etc...?

[ansGTI]

No actually it has not - would this also cause me a problem on cold start up?

[ansGTI]

VW removed the injectors so they could be sent off for testing. They said they had quite a lot of carbon build up on them - the car has only 21K on the clock so has been doing short journeys, would this and poor petrol have caused this?

The injectors were tested by a local company, but they could only test up to 6 BAR (I think) but they said that they thought there was a problem with all of the injectors. They were returned to VW and they have sent them off to another company now - they should have arrived on Thursday so they expect to hear tomorrow.

I have handed this over to the supplying dealer to sort out so they have been liaising with the warranty company and the VW dealership that has the car in Hereford. The supplying dealer told the warranty company that the car was not supplied with the fault and that the repair should be upheld but as I understand it they said that they would only pay for the repair as long as it fixed the problem. VW wouldn't put their money where there mouth was so I think the warranty company told them to get the injectors tested.

Anyway I know injector cleaner is readily available but I've never had to consider using it before and as said the words to me where "the injectors were removed and we found quite a lot of carbon build up on all the injectors"

Can anyone explain why my injectors would be like this? 

[iwilkins]

Hi Mate,

Sorry to see you've still not got this sorted.  In the meantime I've been off and bought me another Ed30 .  I can 100%, hand on heart, now say the new one compared to old is in another league.  I honestly do feel now something was very wrong with the old car.

That said the new one has done less miles and is much better spec'd so maybe i'm being bias :/.  Hope you get your sorted soon ! 

Carbon deposits on the injectors could be a all sorts of thing including poor timing or fuelling AFAIK anyway.  I guess using standard RON 95 ain't going to help any either.  It could also be a dodgy PCV valve or the injectors could indeed be shot.  Sounds like your getting somewhere anyway, stick to your guns and make one of the parties fix it :-)

[ansGTI]

Injector test results are in - they cleaned one injector and found a 10% increase in dispersal at various RPMs. They found no leaky injectors. They also said they had not seen carbon build up like this on other GTI injectors they had tested in the past and that this may point to a combustion problem. I've had a compressions check (which was fine) so what could this mean? Or could it just be a combination of poor fuel and short journeys?

Anyway the workshop manager and I spoke for some time and he recommends getting them cleaned professionally (£30 each) and then re-fitting and running some cleaner through the car. I explained to the garage that I didn't think it was fair that I would have to pay for this, plus the work to date I'm guessing.

I now have a case (manager) with VW Customer Services after I wrote to them complaining about the quality of this car - it has FVWSH, serviced on time and is only 3 year 4 months old with 21K on the clock. Anyway they said they'd speak to the VW garage and give me an answer tomorrow after I updated my case with the info above.

Failing that I guess I try my luck with Car Plan again (who the 3 month warranty is with that I got when I bought the car), but given they turned down VW's original recommendation to replace all the injectors I'm guessing they'll just reject this claim too.

This Thursday my car will have been in the garage 4 weeks 

I can't find much information about what would cause carbon deposits other than the additives in fuel but guessing combustion/timing problems as stated previously

[ansGTI]

For anyone following this...

OK - well some good news.

My injectors are being cleaned, I have received a gesture of goodwill from VW of 70% costs - I accepted this meaning all work to date will cost me £75. Considering everything that's been done I don't think I can grumble and at least I don't have to try and argue it with the warranty company.

I'm going to try and get the supplying dealer to cover the remaining costs, but I'm not holding my breath.

The injectors will be cleaned and tested and sent back to the VW garage and re-fitted. They are also going to inspect the intake valves for carbon deposits after I spoke to them about it. They want me to run a fuel cleaner once I get the car back.

They gave me some more info from the report - at 400 RPM they did a test pre/post clean and they saw an increase of 14%, at a higher RPM (can't recall value) they saw a 10% increase.

Hopefully they'll get the injectors back on Friday/Saturday and they can be re-fitted to the car.

They're also going to check the level of carbon build up on the intake valves

[Phil1980]

Been following this thread closely just had my DV replaced and all is well again I have power  , just out of interest does anyone know the part number and approximate cost of a replacement PCV.

[Saint Steve]

Been following this thread closely just had my DV replaced and all is well again I have power  , just out of interest does anyone know the part number and approximate cost of a replacement PCV.

about £30 approx