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I have a 2000 GTX that is not firing on the rear cylinder. The ski starts and runs but has very little power. I have determined that the rear plug is not firing. I have ruled out the coil by switching the plug wires and coil (white wires) to use the rear coil to fire the front cylinder. The wire to rear coil was not long enough to try the front coil on the rear cylinder. Also last season my speedometer and fuel gauge failed but it ran fine. This year it ran fine except for a bad battery. I replaced the battery and now it only fires on the front cylinder. I am afraid I fried the MPEM. Any suggestions? Thanks.
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