Originally Posted by jruiz370z

Got my Z in march 2011, ever since the check engine light comes on pretty much for no reason. I literally took the car to the dealership more then 7 times. And they cant not figure out why it's doing that. The car is pulling a Multiple cyclinder misfire code. But the car isn't actually doing that. So I take it to the dealership and they really dont know but the car is still under warranty. but its getting close to being out of warranty and they haven't figured it out yet. Last they had my car in for a week, and had a Nissan engineer working on the car. they said they changed my ECM, but engine light still came on after that. frustrated. dont know what to do!?!?????