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I learned there are two Bosch coil part numbers. One part number has been discontinued. The last seven digits of the discontinued coil are 7571643. The last seven of the new Bosch part number is 7594937. So I pulled all my coils to check. I have the old coil number. I measured their resistance. I have 0.6 to 0.7 ohms across the two terminals that are in line with one another. From either of those terminals to the lone terminal, I read an open connection. So I didn't see anything different from coil to coil. But the old part numbers of my coils gives me some hope. My OBD2 cable arrived today so tomorrow I will download software and hook it up. I'll let you know what happens.
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