vacuum diagram
The bottom three squares is what the vacuum routing should look like on your car. Odds are you don't have the vacuum solenoid for the air pump anymore. Which is not an issue, just remove the splitter and plug the egr solenoid vacuum hose into the intake port.
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Verdad Gallardo Best thing to do is hook up a vacuum gauge to the intake and see what vacuum you are pulling.
Thread Starter
TECH Enthusiast
Joined: Sep 2008
Posts: 636
Likes: 0
From: Cheshire, CT
There is a small crack in the passenger side pcv hose but that's been there since I got the car...I kinda noticed the high idle after I got it tuned but then I had him send me another tune where the idle was set to 850 and it still sits around 990
Does the idle sound like 990 or just look like it on the guage?
LT1 tachs aren't the most accurate. My idle is set to 750, but the tach appears to read like ~850.
Thread Starter
TECH Enthusiast
Joined: Sep 2008
Posts: 636
Likes: 0
From: Cheshire, CT
Well when I'm idling at a light it seems like the car wants to still go like it feels like it wants to creep so I almost have to have the brake pedal all the way down cuz in the winter when I was in light snow I'd be sitting at a light and my back tires would still spin so I think it reads and actually is around there...to fix that hose, just get a new one?
Well when I'm idling at a light it seems like the car wants to still go like it feels like it wants to creep so I almost have to have the brake pedal all the way down cuz in the winter when I was in light snow I'd be sitting at a light and my back tires would still spin so I think it reads and actually is around there...to fix that hose, just get a new one?
Check the other side of the intake as well, the two rubber elbows that connect the metal PCV pipe to the front and side of the intake could be cracked as well.
sorry, if this is in the wrong section but, on another note for the vacuum lines, ls1 specifc, if i have a leak in the MAP sensor vaccum tube (like i accidently cracked it lol) would that casue wierd surging and stumbling when WOT'ed?
TECH Veteran
Joined: Dec 2008
Posts: 4,145
Likes: 61
From: Little Rock, AR
Any innaccuracy in the MAP reading is going to cause issues.
