How do you fix trouble code p0191?

How do street reflectors help motorists? What causes a metal on metal clanging noise when at 30mph and again at 65mph? How do you fix a car from shaking while driving? How do you fix heater core in 2000 new beetle? Will a dwi keep you from being a pharmacy technician? Does a bad starter makes your civic stall? Windshield Crack Repair? Will an intake manifold from an older 350 fit on a 350 with vortec heads? Can you use a pressure washer on a car? When is siphon used? How much is the average cost to rent a car for 10 days fullsize for a 39 year old? What does bleeder valve mean? Looking for affordable house and car insurance? Where can someone find a dwi attorney in Canada? What is the DUI law for a seconed Dui in Pa? Why does a Car stall when pressing gas pedal? Whats the advantages of formal team in the work place? Where can one obtain a replacement seal for a garage door? What is a root opening in welding? What does obd code p0460 mean for a 2003 Ford Taurus?