revs up and down slightly and not as responsive as should be???

[chol_gti]

hey had a few probs with car l8ly so i had it all code read etc came bk with like 5 faults so i changed the maf and now ive changed the lambda sensor runs alot better having changed the lambda and mpg is right back up 2 averageing above 35mpg which im happy with rather than 12mpg.

still the revs are slightly high like 1500rpm on idle and wen i change gear they seem to blip up when clutch is pressed so i can never get a smooth gear change without a slight jolt???
so ive put it back on the code reader it came up with 5 still so i erased them all unpluged went for a drive and tryed again. now there is NO codes which is a good thing but still driving pretty lumpy. could it still possibley the maf? i had to buy cheap as i have just been made redundant i no u lot dont advise this but could this be the problem? also anything else i could check or do to get it running better? spark plugs, filter, throttle body clean etc etc??
thanx

[northeast_gti-t]

hey had a few probs with car l8ly so i had it all code read etc came bk with like 5 faults so i changed the maf and now ive changed the lambda sensor runs alot better having changed the lambda and mpg is right back up 2 averageing above 35mpg which im happy with rather than 12mpg.

still the revs are slightly high like 1500rpm on idle and wen i change gear they seem to blip up when clutch is pressed so i can never get a smooth gear change without a slight jolt???
so ive put it back on the code reader it came up with 5 still so i erased them all unpluged went for a drive and tryed again. now there is NO codes which is a good thing but still driving pretty lumpy. could it still possibley the maf? i had to buy cheap as i have just been made redundant i no u lot dont advise this but could this be the problem? also anything else i could check or do to get it running better? spark plugs, filter, throttle body clean etc etc??
thanx

From what you have said i would recommend an oem maf unit imo the original part for the job maybe dearer but as they say buy cheap buy twice i should know  well when you can afford it anyway also if you know someone local with vag-com the idle speed can be altered in adaption mode or one of them anyway but depending on sparkplug conditions etc if you dont know the history etc i would recommend a set of decent plugs as matter of course to and also clean up the throttlebody housing etc hth

[richw911]

TB clean?

[chol_gti]

whats a tb? thanx for help. i really cant afford a new maf i spoke 2 a mechanic and he sed that my plugs will prob b knackered after the fuel etc running 2 rich. may have 2 try everything else b4 i go bk 2 changeing maf

[richw911]

whats a tb? thanx for help. i really cant afford a new maf i spoke 2 a mechanic and he sed that my plugs will prob b knackered after the fuel etc running 2 rich. may have 2 try everything else b4 i go bk 2 changeing maf

Throttle body 

http://www.golfgtiforum.co.uk/index.php?topic=87783.0

[chol_gti]

oh right yea cheers. i put it on the machine again its now reading 2 faults 1 saying throttle position sensor not detected and other saying fuel to rich or lean cant remember??
whats a throttle sensor? and could this be my problem?
cheers

[rheady]

I believe its part of the actual throttle housing. Have you tried cleaning the throttle housing. There is a how to in the maint section. I'd try that first only cost would be some carb cleaner and some cotton wool buds.

[northeast_gti-t]

oh right yea cheers. i put it on the machine again its now reading 2 faults 1 saying throttle position sensor not detected and other saying fuel to rich or lean cant remember??
whats a throttle sensor? and could this be my problem?
cheers

have a look at the link rich posted 

[chol_gti]

im gona clean the throttle body 2day. i took it 2 a friend mechanic and by looking at the sensor and throttle body he thinks its not long been changed. so u think if i clean all the crap out maybe the error cold will be sorted? either way im gona do it 2day thanx

[richw911]

im gona clean the throttle body 2day. i took it 2 a friend mechanic and by looking at the sensor and throttle body he thinks its not long been changed. so u think if i clean all the crap out maybe the error cold will be sorted? either way im gona do it 2day thanx

Could well do let us know how you get on