hesitates when cold

OWNER: Most shops would start with a good visual inspection, then connect a vehicle-specific scan tool, checking fuel trim, Possibilities: Contaminated air filter, Vacuum leak, contaminated mass air flow sensor, faulty mass air flow sensor, restricted fuel filter, faulty fuel pump, ( low fuel pressure ), faulty throttle position sensor, faulty or contaminated fuel injectors, or ignition problems: spark plugs, ignition wires, coil issues, charging system performance, battery or battery connections, ignition switch, voltage drop, Only a few of the many good reasons to visit a Professional, Certified Facility with experienced, Certified Technicians on staff.