My engine started sputtering and the EPC light came on yesterday. Went to my dealer and was told my engine coil is bad and I should replace all of them, which I did. Today I got a warranty extension letter in the mail re: manifold and fuel injectors being "faulty" and being fixed for free up to 120,000 miles. I have 38,000 on my 2012 Eos 2.0. Could the coils going bad be related to a faulty manifold and/or fuel injector? Just wondering.