MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: SyGolf5Gti on December 11, 2015, 11:40:23 am
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Hi Guys
I my MKV pretty much standard except for a DP has started giving me issues, after drivng the car for about 30min it seems to go into limp mode wont rev over 3000rpm and will jerk non stop when trying to accelerate. if I switch off and park the car for about 30 min to an hour it will start and drive normally for another 10 to 15min then start jerking again. Iv taken the car in and the only code ts pulling is p0299 low boost limit not reached. Any idea what the problem might be here as the mach is also not sure he says we need to change the MAF sensor. Why is it that car drives well when cold but when warmed up it gets into limp mode and starts jerking.
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You need a vcds to check the maf readings firstly in order to Ryle that out.
Check your pcv valve as this is a common failure point and I remember this issue when I went to look at golf gti's before buying.
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Thanks, I have changed the pcv valve about 3 months back. Do you think it could maybe be a faulty DV? :sad1:
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It it were your dv then you'd here a hissing/flutter on boost?
More likely the N75 Boost pressure sensor but needs checking?. someone tell please tell me otherwise?.
M
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as r5gtt said and i would also check all boost pipes for cracks or leakes, and would be a good idea to change dv if you have not done so to the latest revision
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There is definitely a slight hissing/whistle coming from the turbo/engine when I accelerate, thanks will get the DV changed/replaced and pipes checked for leaks. Actually come to think of it when I replaced the pcv a few months back the mach did tell me I need to change the DV he said there was a whistle from my turbo I couldn't hear it then but it is definitely audible now.
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Hopefully you'll have it sorted with minimal stress as I hate when things start to go wrong. :sad1:
Let us know what you find on the dv :happy2:
M
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Ait thanks will do.. :notworthy:
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o I got the mach to check the DV and indeed the old one was totally wasted the whole bottom rubber was torn into at least 6 pieces :sick: so we replaced it and im having great boost however a day later my car has started having petrol cuts again and jerking :sad1: I got the mach to check the codes again this time the p0299 is gone its been replaced by a P310C - Low Pressure Fuel Regulation: Fuel Pressure Drops Intermittently :sad1: :sick: now I don't know,I changed the fuel filter two weeks back when the jerking started it was super dirty with black petrol coming out, so im sure its not the fuel filter... any suggestions .. im ready to dump this car now :sad1:
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Has the cam follower ever been changed?
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Has the cam follower ever been changed?
This will be your next port of call :happy2: happens to many gti owners. need to pull out the fuel pump and take the tappet out as it's possibly worn.
Hope it sorts the issue out.
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no never changed this before, will try that thanks... is there a DIY guide for this?
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no never changed this before, will try that thanks... is there a DIY guide for this?
http://www.mk5golfgti.co.uk/forum/index.php/topic,8339.0.html (http://www.mk5golfgti.co.uk/forum/index.php/topic,8339.0.html) :happy2:
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Thanks so I have got the cam follower replaced since mine was definitely worn out.. Drove the car around and after a few minutes of flooring it the petrol cuts started again :sad1: ..... I did not try to get the previous code cancelled after replacing the cam follower could this be the cause or what do you suggest I do next.
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just another point... once the petrol cuts start.. when the car is in neutral or park it wont rev over 3500rpm (Don't know if this means its going into limp mode and why)
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I might be in a lot of trouble as my cam follower was totally worn through there is a hole the size of my index finger :surprised: Iv replaced the cam follower but could this mean my cam lobe is affected? First thought that came to mind was where did those pieces go. The last time we changed oil and did an engine flush there fine metal shavings in oil pan when we cleaned it out I had wondered where these came from.
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That's not good dude
Sump off clean that through
Major engine flush
Oil pick up pipe
And new camshaft no doubt and probably new fuel pump too maybe more things too :sick:
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I might be in a lot of trouble as my cam follower was totally worn through there is a hole the size of my index finger :surprised: Iv replaced the cam follower but could this mean my cam lobe is affected? First thought that came to mind was where did those pieces go. The last time we changed oil and did an engine flush there fine metal shavings in oil pan when we cleaned it out I had wondered where these came from.
:sad1: That's not good Sy, as jhook661 has already said, your fuelling is shagged, new pump, camshaft and hope there's no other damage. Drop the sump and through clean. Let us know how you get on
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Cam and pump damage, both likely to need replacing
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:sick: exactly what I was dreading... il take it in to the dealer and see if my warranty will cover *fingers crossed
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Good luck Sy, it's going to depend on how comprehensive your warranty is, although the cam follower is not considered a serviceable part, so that should go in your favour :happy2:
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Hi guys
So after a long battle my warranty agreed to pay, new cam shaft, new cam follower and hpfp pump. All was fitted, I collected the car and was running beautifully until today after sitting in traffic heard a slight, ticking/knocking sound from the engine, decided to head back to the dealership and just before I got there taking off from a robot.. boom! car starts jerking again, :sad1: you put your foot down it jerks and cuts petrol, just like before... They plugged it in and its still giving the low fuel pressure error code. Now I really don't know, they asked me to bring the car in Monday so they can check it again. if all these parts were replaced what else could the problem be :sick:
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I'm sorry but you should have put your foot down and said no your keeping the car till it's fixed as something worse could happen driving it away.
Get them to check your low pressure pump and injector status.
Check for any boost leaks and maybe even the N75 boost valve.
Hope you sort it.
R5