LT1-LT4 Modifications 1993-97 Gen II Small Block V8

lt1 vaccum leak help

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Old 12-29-2011, 05:13 PM
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Default lt1 vaccum leak help

my tuner says my map readings are sky high. I did the old carb choke spray test with no results. my air intake has a slight rip where it connects to the throttle body. when i apply pressure the idle changes. could this be my leak? its no small leak either cause the car is way down on power. any thoughts?
Old 12-29-2011, 05:50 PM
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If its between the MAF sensor and TB the computer will consider it a vacuum leak and compensate by changing fuel. Cover it with duct tape and see how it effects idle and fuel mixture.
Old 12-29-2011, 06:10 PM
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Ok thank you
Old 12-30-2011, 07:01 AM
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Originally Posted by codymx29
my tuner says my map readings are sky high. I did the old carb choke spray test with no results. my air intake has a slight rip where it connects to the throttle body. when i apply pressure the idle changes. could this be my leak? its no small leak either cause the car is way down on power. any thoughts?
Kinda seems obvious that that's where your leak is??
Or i'm missing something here
Old 12-30-2011, 08:25 AM
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Originally Posted by codymx29
when i apply pressure the idle changes. could this be my leak? its no small leak either cause the car is way down on power. any thoughts?
Dude, seriously, you already answered your own question...what do you think? LOL....no I'm pretty sure GM designed that tear in the rubber intake bellow to increase HP and give a cool sucking intake sound You might as well just buy a high-flow bellow with the silencer removed...or get one of the elbows from jegs.

http://www.jegs.com/p/JEGS-Performan...87064/10002/-1



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