Guest AudiRacerXX Posted August 29, 2003 Report Share Posted August 29, 2003 I bought a new blow off valve for my 2000 audi a4 1.8t and my engine stalls when i slow down because my rpms get to low. I think its cause it vents to atmosphere. I was just wondering if you guys knew anything to help it or a good technique to keep pressing the gas until it idles and breaking at the same time.... The thing is is that when i slow down i keep tapping the gas and then it will settle down and idle like normal. Quote Link to comment Share on other sites More sharing options...
fush Posted August 29, 2003 Report Share Posted August 29, 2003 Move the blow off valve before the maf. This should correct the problem. Either that or you need to recircuilate it back into the intake stream. Quote Link to comment Share on other sites More sharing options...
Guest mudbutt Posted August 29, 2003 Report Share Posted August 29, 2003 Originally posted by fush: Move the blow off valve before the maf. This should correct the problem. Either that or you need to recircuilate it back into the intake stream. Im guessing audi use a blowthrough style maf? Quote Link to comment Share on other sites More sharing options...
fush Posted August 29, 2003 Report Share Posted August 29, 2003 Now that I think about it thats not possible. The maf is preturbo so that wont help at all. The only way to fix that issue is to recirculate the box back into the intake stream after the maf. Its been a common problem with people trying to use a bov on a 1.8T with stock management. -jeff Quote Link to comment Share on other sites More sharing options...
supldys Posted August 29, 2003 Report Share Posted August 29, 2003 if its adjustable, you need to tighten it up some. Quote Link to comment Share on other sites More sharing options...
91TrdMr2T Posted August 29, 2003 Report Share Posted August 29, 2003 what kind of bov ? a buddy of mine has the hks on his 1.8T and hes never had a problem, you may have a vacuum leak. Quote Link to comment Share on other sites More sharing options...
Guest mudbutt Posted August 29, 2003 Report Share Posted August 29, 2003 If it is turbo xs, it may not be tight enough. Even with all of the stack washers, we had to use another $1.75 in quarters to get it tight enough in slow240s car not to leak vaccume. Quote Link to comment Share on other sites More sharing options...
Hwilli1647545487 Posted August 30, 2003 Report Share Posted August 30, 2003 A. Check to see if the valve is leaking. B. Buy a vent kit, and run it back into the plumbing so it isn't venting to atmosphere. OR C. Run it in parallel with the stock BOV. This is what I did to prevent stalling issues. Stock BOV vents at lower preasure, aftermarket makes loud cool noises under high preasure. Quote Link to comment Share on other sites More sharing options...
Guest badmuthrfkr Posted August 30, 2003 Report Share Posted August 30, 2003 You aren't supposed to be venting into the atmosphere. You need to recirculate it. Quote Link to comment Share on other sites More sharing options...
Guest compudaze Posted August 31, 2003 Report Share Posted August 31, 2003 Just unplug your MAF sensor. It will throw a CEL, but your car will run fine. (except it's not designed to run this way) Quote Link to comment Share on other sites More sharing options...
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