I've been having an issue with my 04 NISSAN MURANO. started last summer. if idling in park with the AC on (only on a hot day above 90) after about...

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Hi Gary! Thank you for choosing ExpertHelp.com. May I know if you see any error code on your dash? Have try checking the ignition module? A failing ignition module can occasionally prevent the engine from getting spark, causing it to stall. Have this check and also if you can do a scan using a OBD2 scanner to get the correct error codes. Hope this helps.

Yes it will be possible. That's why I recommend you to have it check to make sure it is not faulty.

Yes I mean the coil pack. Sorry for the confusion.

The insulation in the ignition coil will degrade over time, but many coils are designed to last 100,000 miles or more. So what I can suggest you is have it check. Big possibility this causing the issue. :)

I see. Have it check and also check the spark plugs also. Have it replace. :)

Is there anything else I can assist you with Gary?

Nissan Murano back cylinders under intake is from front of motor goes 1-3-5 and front side of motor is 2-4-6.

Anything else I can assist you with Gary? :)

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Thank you for your response. Possibly. But first try to check the harness if still good. If everything in the harness pin is good after testing it then possibly there is an issue with the MAF it might need to be replace. 

MAF and PCM can be reset using a OBD2 scanner. But even you reset it and still have the same issue it means to say the MAF needs to be replace. You can reset it first and then monitor it what will be the result.

Advise your mechanic to use a OBD2 scanner to reset the computer. And then see if that will resolve the issue or try to remove the positive connector of the batter for 10 mins and then connect it back again and see if that will works.

Yes. But if the reset will not remove the check engine light then it means that it needs to replace the sensor.