Over Revving on Idle

[tdi_will]

Hi Guys,

Had a search but i couldnt find anything so i'll try my luck...

I have a 2001 Ibiza Sport 110 ASV on 88K, its had a remap to 140, now the problem is recently the car has been idling at just under 1k revs.. now im sure it should be idling at a round 500... ive just given it a service with some nice mobil 1 oil filter air filter ect.. the car seems a little rough aswell, ive been having a few problems with limp mode and have WD40'd my actuator arm and i will eventually clean my EGR, manifold, turbo ect, but this is making me a little worried as it doesnt seem related!..

Any ideas on what it could be? timing belt maybe? oh and im changing my fuel filter tonight as im certain it has the original on there (Only owned it 4 months!)

Any info much appreciated

Will

 

[madmonk]

My FR 150 is the same. After it was remaped the tickover went up to 900-1000 rpm. I spoke to Revo who did the remap and they said they make it higher so the tickover is smoother. Got used to it after a few days, never had any other issues with the remap (apart from needing a clutch).
madmonk

 

[tdi_will]

Yeah i suppose it makes sense, maybe im just parnoid because of my sticky turbo problems, but i bought it already mapped and im sure it never use to sit that high..!..

 

[cheshire cat]

Iwould have thought 500 is too low, guess at 850-1000 I think with a slightly faster tickover you get less vibration seting up with the dual mass flywheel at 88K the egr is likely crappy by now

 

[tdi_will]

Yeah i took off the elbow pipe that connects to the EGR yesterday.. i almost cried , its full of sh*t! no wonder its sluggish at the moment, Hmm maybe it should be like that, doesnt seem to be affecting anything so ill leave it be.. need to get VAG-COM on my car.. anyone round North London?!!

 

[cheshire cat]

hardly surprising, it's sticking/leaking which will make it rough/hesitate, it may be as well to do the valve, inlet and check the turbo too, all in one go, if you just remove the EGR valve you could disturb some crap which will get sucked in an stuck under a valve head

 

[muddyboots]

500 would be way too low, I think 800+ is the norm, although as said above, increasing it slightly will make for a slightly smoother idle.

 

[tdi_will]

Ok makes sense thanks for all the info! im guessing that if i took the EGR, Manifold, Turbo off i would need new gaskets for each?..

 

[flappy]

Mine is the same as Madmonks and yours. With map on idle is about 900-950 without around 800 this is on a PD 150 though

 

[basstard]

at 500 rpm the car would be shaking like a german tank,,, 900 is normal.
Clean that intake mate!

 

[MrBen2k7]

My SE 110, standard-map, idles at 850rpm. Does this sound right???

It has had he odd bought that when its warming up, if sat at lights, it will just go to 1,100rpm for like 10 seconds then drop back to 850, then again 30 seconds later, normal???

Ben

 

[basstard]

no, not normal.
mine did that too when I bought it,,, mechanic told me it was "the engine temp sensor" [there's no such sensor], changed it [whichever it was] and it's been ok for 7 years now,,, hook it on vag com and see which sensor is showing a fault then proceed to change it.

 

[MrBen2k7]

Cheers for the response. I think it might be the MAF, I changed it because it failed about 5 months ago, for a cheap non OEM one... I think I need to buy a proper one...

 

[basstard]

no, not the maf, a temp sensor,,,

 

[MrBen2k7]

okies, i'll get my mates VAG-COM on it..

Cheers for your help!

x