A diagnosis tells me the engine electric/coding section is showing faults stored for the map thermostat and low pressure fuel sensor. I have noticed also that when I am driving sometimes that the green engine sign comes on and keeps blinking. Also the start/stop does not work even in the hot weather. I am noticing as well that the engine is misfiring. Would this be an expensive job I am looking at? Is there any easy fix? Are there any thing I should be cautious about? Thanks