Question about 2008 Kia Sportage LX
Changed the Spark plugs, wires, and coil pack. Now says p0306
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Posted on Jan 02, 2017
first, does the motor have 2 or 3 coils? if so, check the ohms on the ones you know is good, then check the ohms on the other one. if they're about the same, they might be fine. other than that theres the ignition module usually located under the coil packs. i dont know how to check it, but if you think its bad, contact your local trusted mechanic and see if he knows how to check it. modules usually run about 70-100 dollars, depending on the manufacturer. you could also check the crankshaft position sensor, but usually if that goes, the whole engine will misfire.
also, the ingition system has what you call a "dead spark." for example, you have 3 coils on the car, and two cylinders are fired by 1 coil. while one cylinder is on its compression stroke, the other is on its exhaust stroke, and when it fires it sends the spark to both cylinders at once. thats why the spark going to the one on its exhaust stroke is the dead spark.
hope this helps!!!
Posted on Apr 17, 2009
Hi, it might be caused by an oil ring on the piton that broke or pistons that is damaged. If you do a compression test, you will be able to find out at which cylinder the engine is misfiring and then you will need to take the cylinder head off to determine the extent of the damage.
Posted on Nov 10, 2009
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Mar 21, 2014 | 2008 Kia Sportage LX
Jul 29, 2012 | 2008 Kia Sportage LX
P0305 is misfire in cylinder #5.
P0306 is misfire in cylinder#6.
P0316 is misfire on start up.
Have the plugs on those 2 cylinders, and the 2 fuel injectors checked, also check for spark from the coil on those 2 plug wires.
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