2007 compass - I've been having some problems the last couple of weeks - sometimes it will start, sometimes it won't - Was taking 2 turns of the key, now 3 before it starts up. Engine light came on for a while Sunday - brought it to Parts Plus but their diagnostic thing didn't bring up anything. Engine light came back on tonight after work. Auto Zone brought up a U1120 code with their diagnostic thing. Would a bad starter cause the U1120 code?