2014年11月13日 · The ISV silencer is extremely prone to becoming brittle due to the heat from the exhaust manifold, and it develops cracks along the seam of the outer cover and the lower assembly, which turns into a wonderful source of vacuum leaks!

2014年2月18日 · I've read some of your posts regarding ISV, and tried to isolate ISV and completely remove it yesterday at my garage. I have clogged both vac lines, unplugged ISV and adjusted TB Screw to compensate, then took car for a run.

2003年11月4日 · When you're looking at your motor, the IAC valve is located on the back of the engine, to the right of the throttle body. It is extremely difficult to see the IAC valve without removing the rear ignition cable guide, the black plastic cover …

2011年1月22日 · 1) The ISV is working. 2) Confirms the ISV is sticking if the exercising stops poor running. If it fixes temporarily, then you know the ISV is in need of thorough clean soon. 3) The test positively exercises the ISV shutter valve over its full travel, which the ECU while running the engine will not necessarily do.

2019年7月30日 · ISV damper material from different engine, obviously oil soaked. (and heat damaged??)

2009年7月27日 · Trouble was it wouldn't always do it. It was always after idling at the lights or a junction that would trigger the stutter on acceleration. A quick dip of the clutch to let the revs fall back to idle and it would be fine. I tried plugs, leads, induction pipe, isv, isv damper, fuel filter, Maf and was just living with it until today.

2017年2月12日 · My 95 vr6 isv muffler was cracked damaged, I only noticed when I found the car not running/idling right. Unsure if it's that to blame as still checking heaps on the car. But as an immediate repair I araldited the box back together which also seals it back up.

2014年10月17日 · Easiest way to see if your ISV is at least moving is to just unplug it while the car is idling, and the idle should change. Sometimes if it is slow or stuck due to getting gummed up internally, simply smacking it a few times with your …

2006年6月6日 · I'm having a bit of an issue with my Corrado VR6. When the car is cold, until I've driven it for a couple of minutes, the revs will drop to about 450-500rpm if you dip the clutch. It never actually stalls, but the sudden drop in revs can sometimes stick for a couple of seconds before they slowly climb back to what they should be.

2008年2月14日 · Make sure all of your ignition is in good order ie plugs and leads, make sure there are no air leaks in the pipework around the intake/throttlebody. Give the isv a clean, it does work wonders, I do mine every few months and it always …