1990 Toyota Camry LE V6,99319 miles....my car started not long ago idling very low and dying out. i went out of town one weekend and on my way comming back the car completely died on me...it wouldnt stay running. i had to get it towed to a shop and the mechanic told me it needed a tune-up and distriburter cap was burnt and cracked so i got it done and now it's still idling to low to the point it wants to shut off. i asked one of my family memember whats the problem and some told me it might be the catalytic converter and some told me it might have a leak in the vacuum that controls the fuel to the engine...i really would appreiciate your help....