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Model specific boards => Golf mk4 => Topic started by: barrett84 on 08 January 2008, 20:10

Title: Flat spots in accerleration
Post by: barrett84 on 08 January 2008, 20:10: Hi all,
I posted a topic up here a few days ago talking about flat spots in accerleration, i've had this problem for a year and three seperate garages can not find the fault i have had the fault codes read, had the MAF changed, Checked the injectorsand the coil pack has been checked and getting fed up now. Can any one help please?
Title: Re: Flat spots in accerleration
Post by: Rhyso on 08 January 2008, 20:13: throttle body cleaned and realigned?
timing checked??
boost pipes checked for cracks and splits??

have you tried running some injector cleaner through??

sorry if these seem obvious but it may help pinpoint your problem

also are you using a genuine MAF?
Title: Re: Flat spots in accerleration
Post by: barrett84 on 08 January 2008, 20:39: i have tried redx to clear the injectors but no joy and i have had all pipes checked for cracks and splitsbut all seem ok, i would take it to VW dealer but last time got stung for Ã‚£Ã‚£Ã‚£Ã‚£s. I guess its a bite the bullet job and ask a dealer? maybe its time to sell.
Title: Re: Flat spots in accerleration
Post by: Rhyso on 08 January 2008, 20:46: have you done the throttle body and timing checked?

don't give up just yet!! i'll have a search and see what else it could be :undecided:

is your fuel pump working ok??
Title: Re: Flat spots in accerleration
Post by: Rhyso on 08 January 2008, 20:50: reading you first post again you said the coil packs have been checked but have they been changed at all?? :huh:
Title: Re: Flat spots in accerleration
Post by: AlanD on 09 January 2008, 12:11: If his coil packs have packed in, there is no way he could have lived with it for year. When mine went it drove me insane after a few hours !
Title: Re: Flat spots in accerleration
Post by: topher on 09 January 2008, 12:19: can you get a list of the fault codes you've had, and you say you've checked hoses for splits but has it all been pressure tested?
Title: Re: Flat spots in accerleration
Post by: barrett84 on 09 January 2008, 14:19: Hi All
Thanks for all the replys, when it first started it felt like a miss fire as time has gone on it has got worse so now when i pull away the rev counter looks like a yoyo. I dont think the coil packs have been changed and the pipes have been tested under pressure, i'm really greatfull for all your help and the more suggestions i get the more i can test but starting to run low on funds as all the garages that have worked on it have charged. please help guys before i have to give her up.
Title: Re: Flat spots in accerleration
Post by: AlanD on 09 January 2008, 22:10: If its the coilpacks then go there slap them all in the face and ask for your money back. There is no way they would not be able to have diagnosed that they had gone. Heres hopeing its not the coilpacks lol
Title: Re: Flat spots in accerleration
Post by: GTi-Matt on 10 January 2008, 21:03: ill be watching this post closely as mine does the same but only intermitant. but theres no way that im giving her up yet coz i love it so much and its only the 1st problem that will cost me Ã‚£Ã‚£Ã‚£'s and shes well worth it. vw 4ever
Title: Re: Flat spots in accerleration
Post by: barrett84 on 11 January 2008, 15:54: Nology POWERCORE IGNITION COIL AMPLIFIERS VAG 1.8T
I have seen these and wondered if any one has had these fitted and if it makes a noticeable difference?
I think my problem may be related to the coil packs but still not 100% sure.
Title: Re: Flat spots in accerleration
Post by: barrett84 on 11 January 2008, 16:10: Hi Guys ignore that some one has just said it is more likely to be the N75 valve or the dd membraine or the n249 valve. any comments?