Check engine light and evap canister codes

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your Matrix. If the check engine light keeps coming back with EVAP system codes despite having the canister replaced twice, there may be another issue within the EVAP system. It could be a faulty purge valve, vent valve, or even a leak in the EVAP hoses or gas cap. Cold weather can make EVAP system components more prone to failure because of contraction, so it's possible that's contributing to the issue. A smoke test may help detect small leaks that could be triggering the light. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!