My emission service light is on. How much will it cost? on 2001 Volvo V70 XC

Very rough idle at light sometimes no power when pressing down gas pedal

1 answer
A diagnosis will run you 1-2 hours of labor time. A proper diagnosis is crucial to understanding the true problem, so you can get a true cost of repair.
Here are some shops near you: http://repairpal.com/volvo-within-10-miles-of-84098