I have a 2015 Elantra that started stalling during deceleration and stopping about a month ago. It cranks back up, but stalls 3-4 times in a 20-minute drive. We initially got a code for the MAP sensor, replaced it, and the code disappeared, but the problem persisted. Next, we replaced the camshaft position sensor after getting a code for it, but the issue continued and the same code reappeared.
So far, we’ve changed the oil with an OEM filter, replaced the spark plugs, cleaned the throttle body, replaced the PCV valve, MAP sensor, and camshaft position sensor. My mechanic is at a loss. Any suggestions on what to try next?
Have you tried running the car through a diagnostic machine to get the exact codes/errors? fixing everything without the exact error code is counterproductive since you may be working with the unknowns