Supra Forums banner

1 - 5 of 5 Posts

·
Registered
Joined
·
519 Posts
Discussion Starter · #1 ·
As seen on attached picture circle in red, little thingy connected to the throtle body on 7MGTE engine. What purpose of it, and how does it call. :dunno:
Also it prolly been there for all 17 years, does it need to be change, or any special maintaince? Thanks guys in advance
 

·
Just some guy
Joined
·
1,682 Posts
Thats your dashpot and it's filter. It's an emissions component that makes the revs drop slower when you let off the throttle. I don't remember which actual emission it's supposed to reduce, though. I've never seen one go bad. Check it like this. Rev your engine up to like 3k. Pinch the vacuum line coming off the dashpot. Then let off the throtte. RPM's should stay steady at like 2k or 2.5k rpm IIRC (check tsrm for exact rpm). Then when you unpinch the vacuum hose it will drop to normal idle. As long as it holds the rpm's when pinched, regardless of how many rpms, it is working. If the rpm is at the wrong spot, theres an adjustment screw to change it. If it doesn't hold check/clean the filter or replace the dashpot.
 

·
Back to boosting!
Joined
·
339 Posts
It's purpose is to ease off the throttle to keep the rich spike of a suddenly closed throttle from happening. If you take it out or disable it by backing out the screw, your car will pop and spit more and possibly flame more on letoffs...
 

·
Registered
Joined
·
519 Posts
Discussion Starter · #5 ·
animantoric said:
It's purpose is to ease off the throttle to keep the rich spike of a suddenly closed throttle from happening. If you take it out or disable it by backing out the screw, your car will pop and spit more and possibly flame more on letoffs...
:bigthumb: ^^^^ thanks
 
1 - 5 of 5 Posts
Top