Fluctuating Tickover AUQ 1.8t.

[paulos44]

I wonder if anyone can enlighten me as to why my tickover blips by 100rpm or so when warm,about every 10 seconds ? The car runs fine but i do like to keep it in tip-top condition,and obviously something is amiss under the bonnet.
I have ran the basic(free) version of VCDS but no fault codes showed up.

 

[Allan156]

Cleaning the throttle body may help, well it did on mine.

 

[LukeK]

Also throttle body reset. By vagcom

 

[ukgaz]

Disconnect your MAF for a bit and see how it reacts, if it holds could be on it's way out.

 

[ibizacupra]

air leaks probable cause
smoke leak test should reveal/eliminate that as cause

 

[jackoni]

air leaks probable cause
smoke leak test should reveal/eliminate that as cause

Any other ideas Bill? i also have this but can confirm with a smoke test that i have no leaks...iwsh i did so i knew

 

[stevierob]

my tickover was crap, just did N249 delete, 10 min job, sound now



steve

 

[jackoni]

Delete or bypass? I have the bypass done but all the hardware for delete, wonder if it will sort me out!

 

[stevierob]

Just the simple bypass mate, worked for me. i'l do a full delete another time..



Steve

 

[paulos44]

Regards the MAF, do they work or not work at all or is it possible for one to partially work. I ask this as sometimes my car goes like a rocket and sometimes it feels sluggish ?

 

[jackoni]

Regards the MAF, do they work or not work at all or is it possible for one to partially work. I ask this as sometimes my car goes like a rocket and sometimes it feels sluggish ?

Same here...have not had a MAF go in 3 years 35K miles and get the same issue so hoping a new MAF next week will breath some umph back in curious to know the answer to your question also!

 

[Alexis27]

I find MAFs tend to last 80,000 miles, so I'd replace it at that point as a matter of course.