MY car has been idling pretty crappy now for about 3 months. I was doing some digging on the vortex and people had said that to improve your idle in some situations to unplug your ISV. I did this today, and my car drastically improved its idle. The funny part is, that when I plugged back in the ISV, the car automatically went to a rough, crappy idle. Does this mean my ISV is broken or just dirty? Well thought I'd share with you guys incase someone else out there had a crappy idle, and wants to test it out and see if the ISV is the problem. http://****************.com/smile/emthup.gif
ISV is the idle stabilizer valve. It's located right to the right of your intake mani (assuming you have a 16v) It helps to stabilize you idle. If it gets dirty, or broken, you can get crappy idling or idle problems.. hope that helps..
I don't have an ISV on my digi 2 16v. It nice not having the motor trying to find a good idle all the time, It idles at a nice 850 and doesn't move up and down or bounce http://****************.com/smile/emthup.gif
Yeah, I've had the EXACT SAME problem..
But I can't find the ISV. My stupid Haynes manual doesn't have anything useful about the idle air stabilizer. It's next to the intake manifold? "Intake Manifold" isn't in the index.
What IS the intake manifold? The thing the throttle body hooks up to?
And specific directions OR a pic would be nice
Yeah, I've had the EXACT SAME problem..
But I can't find the ISV. My stupid Haynes manual doesn't have anything useful about the idle air stabilizer. It's next to the intake manifold? "Intake Manifold" isn't in the index.
What IS the intake manifold? The thing the throttle body hooks up to?
And specific directions OR a pic would be nice
i dont want to come off wrong, but if you have questions like that, you should buy a bentley manual.
8v ISV
Yeah, I've had the EXACT SAME problem..
But I can't find the ISV. My stupid Haynes manual doesn't have anything useful about the idle air stabilizer. It's next to the intake manifold? "Intake Manifold" isn't in the index.
What IS the intake manifold? The thing the throttle body hooks up to?
And specific directions OR a pic would be nice
Key word in bold.
Seriously, the Haynes manual sucks and the Chilton isn't much better. You really need to get a Bentley. Best $38 I've ever spent: http://www.parts4vws.com/catal...00112
To answer my question...
Searching under the archived content for the words "clean" and "ISV" will show you several threads about it..
and this page has a diagram for the ISV of an Audi http://www.20v.org/engprob.htm#isv
Yeah.
On my G60 I plugged this little house at the verry end of the Inatke mani and $hit was all messed bad gas milage and **** I could actauly watch the needl go down then whne i let off the peddle it woudl move up some. I unplugged it and it wnet back to normal same with my 85 coupe i unplugged it cause I was getting really really bad gas milage and it improoved my gas milage a lot. didnt know abotu this ISV though.
my car has a ROUGH idle, like the whole car shakes and it stalls sometimes. I unplugged my ISV and it starts up and just dies. Im gonna try cleaning it out tomorrow but im afraid thats not the real problem? any help guys?
91 8v BTW
Seriously, the Haynes manual sucks and the Chilton isn't much better. You really need to get a Bentley. Best $38 I've ever spent: http://www.parts4vws.com/catal...00112
I don't think I've ever talked to an A2 driver that didn't have idle problems. The 16v is so complex. Don't even consider buying a new one, they cost over 300$. VR6Swap once mentioned to me that replacing the fuel injector seals made drastic improvements also. I trust his input, he could put a Phaeton engine in a A1 body.
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