Coil: Electrical device that creates the sparks that can be seen in spark plugs.
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It is a high-current generator. The engine's computer sends a signal to the coil so that it can boost the energy that will be conducted through some special wires to the spark plugs and, in one of its ends, the spark that will later spark the fuel mixture inside of the cylinders will be generated.
My car keeps getting a coil light coming on an going into limp mode while I'm on the motorway I keep getting a 01617 code coming up been told that the wiring mite be messed up any ideas?
I am facing misfires when engine is cold and when it is warmed up everything works fine , replaced coils and plugs but no use , can't able to detect the exact problem
I changed the PCV valve and runs 60% better. Still some engine sputtering during acceleration and idle, but better than before. Was thinking of changing the ignition coils