E cap in fuel emission system

Hello, I understand the term "evap" for evaporative emissions system, but I don't know the term "e cap". Perhaps your mechanic thinks it's an evaporative emissions system issue. Either way, hands on testing is needed. Note that most evaporative emissions system issues would not cause a vehicle stall. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops