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.