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Model specific boards => Golf mk4 => Topic started by: Gtijonesey on 06 June 2013, 21:00

Title: Boost problem
Post by: Gtijonesey on 06 June 2013, 21:00
Hi I have had my gti for about 3 weeks and noticed when u accelerate u get boost and then about 3000 rpm I get a wooshh like a dump valve is going off but got a standard recric and loose boost if I keep my foot planted it picks up slowly. If I chance gear I get boost again than does same again. Any ideas anyone?
Title: Re: Boost problem
Post by: mar_k on 06 June 2013, 21:08
.........................
Title: Re: Boost problem
Post by: dom on 06 June 2013, 21:25
Scanned for fault codes? Is it mapped?
Title: Re: Boost problem
Post by: navmk4gti on 06 June 2013, 21:31
Look around for any splits in the boost pipes.
Title: Re: Boost problem
Post by: Gtijonesey on 06 June 2013, 21:35
I keep getting engine man light on and coming on with lamda sensor. I got told its mapped but not to sure. It doesn't feel that fasted. I have had a look around pipes but canrt see out really.
Title: Re: Boost problem
Post by: navmk4gti on 06 June 2013, 21:44
I keep getting engine man light on and coming on with lamda sensor. I got told its mapped but not to sure. It doesn't feel that fasted. I have had a look around pipes but canrt see out really.

Then its most likely in limp mode
Title: Re: Boost problem
Post by: Gtijonesey on 06 June 2013, 21:51
How would I know that mate get it plugged in?
Title: Re: Boost problem
Post by: navmk4gti on 06 June 2013, 21:54
Yes scan it. Constant driving limp mode aint good. So if becomes obvious by the fault code what it is then sort it bud before cause damage other bits :wink:

Use rosstech faults code page bit description on what codes are
Title: Re: Boost problem
Post by: Gtijonesey on 06 June 2013, 22:04
Cheers pal. I get lamda sensor sorted that's what I am getting. And fuel trim fault code not sure if that's something to do with lamda.
Title: Re: Boost problem
Post by: budgie on 06 June 2013, 22:07
try not planting ur foot and try accelerating slowly,
Title: Re: Boost problem
Post by: Gtijonesey on 06 June 2013, 22:14
It still does it mate just a bit later on the rpm. Or when u get it under load too.