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Model specific boards => Golf mk4 => Topic started by: reedy20vturbo on 02 May 2014, 23:40

Title: 1.8t aum low rev surge between 1500 2500k
Post by: reedy20vturbo on 02 May 2014, 23:40
As above, does anyone else get this sometimes? If it doesn't surge it'll be a flat spot instead, sometimes it'll fine but other times it'll do that,  cheers
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: northeast_gti-t on 03 May 2014, 23:43
worth checking for any fault codes firstly as this can be one or two different things
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: reedy20vturbo on 05 May 2014, 15:03
Got the 17705 code but it comes at goes, I've replaced my maf sensor (genuine) because when I disconnect it, the car won't surge or anything when I replaced it, everything was good for a day or to and it's doing it again so I replaced it again on Tuesday and it's doing it again now so it can't be that, I just thought its strange why it doesn't do it when the maf is disconnected?
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: AD1.8T on 05 May 2014, 18:48
Mine does it alot no idea what it is as I have no codes coming up. It is annoying though occasionally the mrs thinks I boot it and gives the "look" I dont think she believes me that its actually the car
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: reedy20vturbo on 06 May 2014, 07:50
Haha, yeah same here mate! Somedays it worse than others, and sometimes it won't do it at all, must be a leak somewhere but Finding leaks is a nightmare! :)
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: AD1.8T on 07 May 2014, 18:05
Would a boost leak cause it to do that ? Mine really gets on my nerves sometimes no matter what gear im in it will do it between 1 and 2.5k
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: dom on 07 May 2014, 18:27
It could be a boost/vac leak although it shouldn't really be boosting before 2.5k
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: reedy20vturbo on 07 May 2014, 22:46
Finally someone with the same problem! That's the exact same thing that happens to me, disconnect your maf and try, mine won't do it with it disconnected, it will put your traction control light on as well as engine management light, I've tried the best I can to look for a leak but all the hoses are like new,
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: dom on 07 May 2014, 22:52
Finally someone with the same problem! That's the exact same thing that happens to me, disconnect your maf and try, mine won't do it with it disconnected, it will put your traction control light on as well as engine management light, I've tried the best I can to look for a leak but all the hoses are like new,

If you unplug your MAF and the running improves then your MAF is probably faulty.
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: Perryd84 on 08 May 2014, 08:37
I get the same kind of thing but only in first gear. Sometimes the slightest pressure on the throttle and it shoots through the revs other times it's flat with no power! Baffled!!
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: reedy20vturbo on 08 May 2014, 20:12
I've replaced my maf 3 times with genuine ones from tps and it's still the same, yeah that's the same as me, but the past day or to its been fine, my mates agu pisses mine, his has no record of any tuning, we both done exhaust and fordge recirculation valve, other than that there both standard, when he boots his it'll wheel spin in the dry all through first and second,,mine will only spin in first in the wet, I've never been in another 1.8t apart from that's there both standard with the same sorts miles, I've never been in another 1.8t part from his so I don't know if mines under performing or if his has been chipped
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: hitman_bridger on 09 May 2014, 19:24
I had this problem a couple of weeks ago. Changed the maf, that didn't help. Took it to vw they said it's the air filter. Changed that and now it's fine. Fingers crossed
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: Bandit127 on 09 May 2014, 19:33
If his wheel spins in first and second in the dry he has either:
1. Crappy suspension.
2. Knackered tyres.
3. A badly mapped car.

Or all of the above.

My mates is bog standard with Kumho tyres. With a 200 bhp remap it just scrabbles in first sometimes. Even in the wet, second is solid.
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: AD1.8T on 13 May 2014, 13:03
Ive unplugged my maf and it hasnt done it since so it was obviously at fault now the car runs smooth and actually feels alot faster ! So would a new maf feel even better than not having it plugged in or will it be the same ? Any ideas what tps want for them ?
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: Dalo Harkin on 13 May 2014, 13:07
I wouldn't run it for too long without a MAF as it runs on default levels for fuelling which are rich, from memory they are around £60 exchange from TPS / GSF
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: AD1.8T on 13 May 2014, 13:18
Na I obly done 2 4/5 mile trips would a faulty maf cause crap mpg then ? 60 odd isnt too bad really
Title: Re: 1.8t aum low rev surge between 1500 2500k
Post by: reedy20vturbo on 13 May 2014, 13:26
Yeah it will feel better for a while but it comes back, it's very strange, like.I said I've replaced my maf 3 times from tps exchange and still have to 90quid, mines doing it again now, it's a pain in the ass a need to find out what's making it do it :)