The ECM n FCM

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. Testing is the most important thing here. "I was told" is not reasonable to figure out what is going on with your vehicle. Based on the symptoms alone, I cannot really say what is happening. I can say the ESP light has nothing to do with air conditioning issues - so, along with the hesitation at low speeds there seems to be multiple concerns that require troubleshooting. Seek guidance at a local shop near you. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.