[gunka]

could anyone shed some light on a problem i've got. it started off with hesitation on low revs like when pulling away then engine managment light comes on and stays on. i've taken it into volvo who said it was dirty connections on throttle valve. they cleaned connections and cleaned the valve. about 100 miles later same problem. this time they changed the throttle valve. yet again same problem. any ideas what this could be. only had the car 3 months. it is a 1.8 on a 55 plate