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Model specific boards => Golf mk3 => Topic started by: aston64 on 20 November 2010, 16:43

Title: 16v idling problem
Post by: aston64 on 20 November 2010, 16:43

ive got a p reg mk3 16v and when its cold and idleing it randomly revs a little then goes back to normal.. also some times when idleing it will runs lumpy and the revs will drop to near stralling point then revs its self back to normal. any help would be great cheers simon

Title: Re: 16v idling problem
Post by: luckycharms on 20 November 2010, 16:52

I had the same symptoms on mine, cleaned out the throttle bodies and its good as new now!

Title: Re: 16v idling problem
Post by: Christo77 on 20 November 2010, 17:02

Hi there.. yep clean the throttle body internal is a good first shot and won't cost you anything.
Other than that start doing some searches, you'll learn lots! and soon see the common faults and fixes with this type of issue.
You can work through the less expensive and easier fixes, at least eliminating them as you go until your sorted.

Title: Re: 16v idling problem
Post by: aston64 on 20 November 2010, 17:10

thanks for that.. over the last few months i had a hesitation at 3k so i changed leads, coil, plugs, dizzy cap, rotor arm, ecu relay, fuel relay, crank sensor, changed vaccuum pipes and it ran fine now this happens.. ill clean throttle body tomorrow and see what happens cheers simon

Title: Re: 16v idling problem
Post by: Christo77 on 20 November 2010, 17:32

Your well into it then, check any breather pipe/apperatus too..i imagine you will have done so though.

Title: Re: 16v idling problem
Post by: Khare on 21 November 2010, 13:11

Also give the earths a clean and tightening up. I spent ages trying to find why mine would idle bad, bought a new coolant temp sensor and it ended up being a loose gearbox earth.

Title: Re: 16v idling problem
Post by: big_G_622 on 23 November 2010, 10:43

i tried everything on mine, but couldn't get it sorted. in the end i just took it out and thrashed the nuts off it for a good our - literally drove it as hard as i could (with in the speed limit  :wink:) and amazingly that seemed to solve it!!???

so if after you have tried absolutely everything. give that a go!!!  :grin: