Just to add to this one you will need a test light or multimeter and see if there is power to the small purple wire at the starter when the key is released from the start position and the starter still runs. If there isnt power power at the purple wire with the starter running then bad starter. As far as the code P0340 I need to know what engine you have?
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Saturday, November 19th, 2011 AT 3:58 AM