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<blockquote data-quote="ohmywhatamessimin" data-source="post: 1613032" data-attributes="member: 626187"><p>First of all the coil has two sets of wound copper wire inside of it. one set of windings is inside of the other set of windings. the outer set might have 10 times more windings of wire than the inner set. the outer set has a positive and a negative lead on each end of the wire so an electrical current can flow through the outer winding if 12 volts is flowing through the outer winding and the entire coil in the outer winding is full of current then you take away the ground wire that gives the voltage no where to go except for the closest place it can find in which case it would be the inner winding. so the voltage jumps to the inner winding of the coil that has 10 times less coils in the windings so that causes the voltage to be increased by a multiple of 10 so 12 volts would now be 120 volts since the inner coil only has 1 wire on it that leads to the spark plug that is where the voltage will go. The ignition module is the part that lets the ground be switched on and off at the proper time to the outer winding of the coil and is a separate part. since the coil is the device that is considered the load device it can build up to much resistance that it causes the module to go bad meaning both parts should be changed and both parts should be tested to specs. have an ase certified tech check this for you or you could keep pumping money in the car for domino effect problems. Or just change them both. What I tell you here is basic electricity. The coils work at much different multiples for much more voltage aprox 30 to 50 thousand volts but not deadly because the amps are so low just enough to shock you silly. The camry I would not know the locations off hand because with thousands of different cars on the road I can&#039;t know them all so have a real Mechanic look for you and leave this alone ok.</p></blockquote><p></p>

[QUOTE="ohmywhatamessimin, post: 1613032, member: 626187"] First of all the coil has two sets of wound copper wire inside of it. one set of windings is inside of the other set of windings. the outer set might have 10 times more windings of wire than the inner set. the outer set has a positive and a negative lead on each end of the wire so an electrical current can flow through the outer winding if 12 volts is flowing through the outer winding and the entire coil in the outer winding is full of current then you take away the ground wire that gives the voltage no where to go except for the closest place it can find in which case it would be the inner winding. so the voltage jumps to the inner winding of the coil that has 10 times less coils in the windings so that causes the voltage to be increased by a multiple of 10 so 12 volts would now be 120 volts since the inner coil only has 1 wire on it that leads to the spark plug that is where the voltage will go. The ignition module is the part that lets the ground be switched on and off at the proper time to the outer winding of the coil and is a separate part. since the coil is the device that is considered the load device it can build up to much resistance that it causes the module to go bad meaning both parts should be changed and both parts should be tested to specs. have an ase certified tech check this for you or you could keep pumping money in the car for domino effect problems. Or just change them both. What I tell you here is basic electricity. The coils work at much different multiples for much more voltage aprox 30 to 50 thousand volts but not deadly because the amps are so low just enough to shock you silly. The camry I would not know the locations off hand because with thousands of different cars on the road I can't know them all so have a real Mechanic look for you and leave this alone ok. [/QUOTE]

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