lx5.0

i got me an vaccum gauge cause i think i have a leak, where is the best place to hook it up and what reading should i be getting

mjr46

what makes you think you have a vaccum leak?? you can hook the gauge to a vaccum tree but that won't tell you all that much as to where one may exist expecially if it's a slight leak

lx5.0

cause my idle sucks it surges when rpm's are dropping and a little when standing still and even when im driving car and slowing down i let my foot of gas but still in gear and you can feel car surging down , i connected the vac guage to the intake mani and i got 10 and the car was fine before i swap the intakes i didnt have no faulty sensors, unless the timing not being right makes a car surge like but im pretty sure i timed it right

lx5.0

and i also already reset the base idle set the tps what i did notice is that when i disconnect iac nothing happens and before when i would disconnect it my idle would drop

mjr46

spray all vaccum lines and gasket sealing surfaces with brake clean and listen for a change in idle = there will be a leak when motor does such

lx5.0

is carb cleaner the same as brake cleaner