What the heck is it???

[supraaddict87]

When I started up my N/A car from sitting over the winter it wouldent idle under 1000 RPM. After checking all the plugs, TPS, ISC, ect., I couldent find the problem. It turns out it was a small check valve attached to the throttle body stop. I was kinda curious as to what it is called as I have never heard anyone talk about it going bad/cloging.

mike

 

[mkIIIman089]

Haha, a little while back I had my TB out as well and I didn't know what it was. It's called the dash pot and its an emission system I believe. It's supposed to hold the TB open slightly when you let off the gas to allow any already injected fuel to fully burn out.

 

[Supramatt90]

What did you do to it in order to fix your problem. I have the same thing, it will idle very high and I can't figure out what is causing it.

 

[supraaddict87]

well, my car would stall if the RPM's droped below 1000. It has a little filter on the end, and when it cloged it wouldent let the diaphram fill with air when it starts-this action opens the TB slightly so it will idle. I cleaned the end of it and it worked fine

mike