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Old July 6th, 2013, 10:16 AM   #1
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Unhappy need help please with my engine light on my 1999 wrangler 4.0

could anyone help me im trying to find out what is wrong with my jeep my engine light is on and the jeep runs very rough it sometimes starts rough sounds like starter but jeep runs very well in idle but backfires and has no power when accelerated I had it on the tester and these codes came up p305-p306-p300 both misfires on 5 and 6 cylinders could it be the crank position sensor

please get back to me im jeff my email is jeeperbond@hotmail.com thanks so much
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Old July 23rd, 2013, 06:25 AM   #2
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Gonna say it sounds like the cps. What year 4.0?
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