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P0300 Engine Misfire detected -b
Umm mwell try clearing codes and see if it clears up? Bad gas??? Any smart guys out there to help???? I hope he and the car are OK.
Dave
Check the wires for torn boots, burnt boots, ripped torn wires or in some cases just a sparkplug boot that is not properly pushed on to the plug or coil tower. He will be able to drive the car a short distance but performance and fuel mileage will be very poor. If you drive the car without fixing it first you can seriously damage the CATS.
If he has access to an ohm meter, each OEM wire should read between 250-750 ohms.