balboa 0 Posted December 25, 2006 Hi guys, over the past week my mk2 vr6 seems to be having idiling problems, whilst im driving the the car doesn't seem to be as smooth as she should be, the best way i can describe it is that it feels lumpy and rough almost like the cars coughing, also as i start the car up the revs shoot up past 2000 revs but does come back down to normal after about 30 seconds...whilst the car is ticking over if i turn the lights on or the fan heater on the revs shoot down and the car stalls....anyone have any idea what could be wrong, any help abd advice is greatly appreciated....many thanks Quote Share this post Link to post Share on other sites
mattkh 0 Posted December 25, 2006 Hi Check the wires to the MAF connector. Also clean the MAF sensor. Quote Share this post Link to post Share on other sites
andy 0 Posted December 27, 2006 Search for ISV mate. Big culprit in the world of VR6 idling problems! Quote Share this post Link to post Share on other sites
dr_mat 0 Posted December 27, 2006 also as i start the car up the revs shoot up past 2000 revs but does come back down to normal after about 30 seconds... This is normal when it's whilst the car is ticking over if i turn the lights on or the fan heater on the revs shoot down and the car stalls This sounds like a battery/alternator problem, or even a short on one of the circuits you're talking about (lights/heater). Electrical load shouldn't kill the engine completely. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted December 27, 2006 Shouldn't be holding 2000rpm for 30 seconds when started from stone cold, 2 or 3 at the most. I'd take off the idle valve and give it a good clean out first and see how that goes. Quote Share this post Link to post Share on other sites
balboa 0 Posted December 28, 2006 thanks guys Quote Share this post Link to post Share on other sites
M15 VW 0 Posted December 28, 2006 take the isv off and soak it in ipa from a chemist overnight Quote Share this post Link to post Share on other sites
dr_mat 0 Posted December 28, 2006 take the isv off and soak it in ipa from a chemist overnight India Pale Ale?? Quote Share this post Link to post Share on other sites