P0306 Azera misfire code

Question

error code- 0306
Hyundai Azzera 2008
sometimes when car starts , check alarm is flashing (on/off) and car moves hardly and engine starts shaking . Then when we turn off the engine and again starts, mostly problem would be solved . but again in next starts it will happen again usually . Coil 6 and spark 6 is already replaced but Problem not solved .

Answer 1

P0306 Misfire number 6 cylinder

Whenever there is a misfire , the whole engine performance gets affected which result also in random misfire, Certain scan tool read different way the misfire may have been at a different cylinder, It always very important to check the ignition  with a ingition tester to test each cylinders, For now if number 6 is truly the misfire and still misfire use this TSB for this condition TSB 10-FL-012  or CAN 10-30-007 There is also a TSB dealing with the TPS (Throttle position sensor) TSB #09-36-003-4. These TSB can be responsible for this condition the reason is when you shut the engine off then its normal. You may not even have a ignition misfire for this condition.