What vacuum should I be drawing at idle?

sts70004

Registered User
I honestly have no idea, and I'm drawing about 17 in hg on my vac/boost gauge. Is that about right? Runs rough on idle so I thought I'd check for a vacuum leak.
 
oh i just saw it on another thread. I have been searching with the wrong terms I guess but I figured it out. 20 inches right?
 
I'm pulling 15 in hg. So I might have a small vacuum leak then. I have a somewhat rough idle. I've replaced Oxygen sensors, cleaned the MAF, and that really smoothed it out, but its still a little rough. Vacuum Leak a likely culprit?
 
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