HI, my engine management light came on under heavy accelleration.When car was left for 8 hrs it ran really lumpy. took it to dealership who, diagnosed throttle body and reset system and cleaned body.The car has run fine for 2 weeks but management light has came on again, however the car is running fine, so question 1 do i need a new body? 2 are throttle bodies all the same or do i need a specific one? i ask this as saab want £600 and i have seen them advertised for £150 93 95 my car is a 2000 convertible viggen