whats a good vaccum pressure that you should be at. mine used to be at 19 steady and then now bumps between 18-21 depending on if i run it or not, an temperature. is this ok? and my idle changes slightly between 750-900 depending on temperature too.

 

between 19 and 21 is good

 

sounds fine to me bro!

 

hmm..ok then thanks is the idle fine too?

 

yes

 

This is helpful
http://www.classictruckshop.com/club...ts/vac/uum.htm
The level is ok, just make sure it doesnt fluctuates too much

 

the idle is probably just an inconsitancy in the guage itself

 

...there's one important thing to know about your car...it's a DSM and it will do what it wants when it wants to f*&^ with you, lol.

 

HAHA, yea i know

 

Oddly enough i learnt that the harsh way.... hahaha damn check engine light -_-