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my vw golf mk4 keeps dropping reves when ideling, how can i fix this?

vw mk4 golf 2003 model.
when the car is ideling the reves seem to drop and pick back up. how can i fix this
jgib, March 2008
golf 130bhp tdi it want rev over 3000rpm aqnd the ers light comes on when it get 2 3000rpm any idears.

paul, June 2009
hi my car was doin the same but also a little hesitant on accceleration, i had it plugged into a scanner an it was the lambda sensor changed it an now runs fine might be worth a check

phil, August 2008
ALL YOU NEED TO DO IS CLEAN THE INJECTORS WITH ADDON TO FUEL TANK , OR MAXIMUM CLEAN THE CARB , EASY JOB NOTHING TO WORRY ABOUT , BEST REGARDS

vwspecialist, July 2008
my mk4 turbo was doing the same cleaned throttle body out with carb cleaner workes a treat

spainy, March 2008
my mk4 turbo was doing the same cleaned throttle body out with carb cleaner workes a treat

spainy, March 2008
my mk4 turbo was doing the same cleaned throttle body out with carb cleaner workes a treat

spainy, March 2008
trottle body clean ,hd leeds change!!!,posible sparplugs,done by vw dealer ,sort my mk4 golf 2000 1400 cc problems

miki, March 2008
Hi mate,sounds like your idle valve,i had same fault on a mk2 golf.Their about £100,so make sure it IS the problem 1st! Invest in a haynes manual.

keith longley, March 2008
check for a vacuum leak or replace your idle air control motor

David, March 2008
link Click here to see other fixes for Golf.