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Author Topic: Newbie help please  (Read 2823 times)

Offline Scottybob

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Newbie help please
« on: 28 October 2015, 23:07 »
Hi all,
I have just bought a mk4 1.8t gti that's nice cond just a couple of niggles. Firstly under acceleration it hesitates and kind of splutters a bit and seems to go away at approx 4k revs, on idle it's perfect and starts perfect. After a search on the net points towards a maf sensor?? Can this be cleaned? Or the throttle body? Any tips or links to guides would be greatly appreciated!
Secondly there is a kind of rattle from underneath when coasting that goes away when accelerating. Exhaust heatshield?

Thanks in advance guys
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Offline barrym381

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Re: Newbie help please
« Reply #1 on: 29 October 2015, 08:56 »
your probably best buying a cheap code reader to see if anything comes up before guessing  :smiley:
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Offline Scottybob

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Re: Newbie help please
« Reply #2 on: 29 October 2015, 10:01 »
Code reader ordered. I have tried disconnecting the maf with engine running and the engine was exactly the same when on a test drive. Surely that would point towards a maf? I will wait till I read the codes.
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Offline brianpologti

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Re: Newbie help please
« Reply #3 on: 29 October 2015, 12:27 »
I bet you got a split pipe , around the breather system ,once you found it , you can replace with oem or silcone
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Offline OSR

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Re: Newbie help please
« Reply #4 on: 29 October 2015, 13:02 »
Coilpacks? Also yes, exhaust heat shield, mine was rattling for years before I finally changed to a stainless downpipe/cat which does away with the heatshield.
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Offline Scottybob

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Re: Newbie help please
« Reply #5 on: 29 October 2015, 13:16 »
Just took the engine covers off and your right a hose has a split in and like sponge and some clown has taped it up! Gggrrrr another one ordered from tps and off to collect it a minute. Report back later hopefully to say it's all awesome!
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Offline Scottybob

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Re: Newbie help please
« Reply #6 on: 29 October 2015, 15:59 »
The split hose swapped but unfortunately when removing the old one the plastic pipe it connects to was brittle and split too! I fitted it the best I could and taped it on till I can get back to tps to get that one too. A test drive was slightly better than before but still spluttering a little. Hopefully it's just because I taped it?? It is well taped up tho. I hope I haven't bought a lemon :-((
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Offline Mr_Orange

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Re: Newbie help please
« Reply #7 on: 29 October 2015, 18:32 »
Throttle body clean is part of my maintenance regime :-D It works wonders!
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Build thread clicky

Offline Scottybob

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Re: Newbie help please
« Reply #8 on: 29 October 2015, 18:43 »
Can somebody give me a link to a guide to clean throttle body please?
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Offline Wazzzer

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Re: Newbie help please
« Reply #9 on: 29 October 2015, 22:51 »
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1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175
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