Hi

I have a 2017 Nissan Qashqai J11 St auto petrol model.  The orange malfunction indicator light has been on for a while now.  I have had the vehicle several times to an auto electrician who has reset it and the code was P0303 with the message that the 3rd cylinder is fisfiring.

I have also had it to the local Nissan dealer who again reset it with the same error code showing up.  It has had a new coil ignition pack put in as well as a standard service with new spark plugs.

It has recently started to shudder a bit when driving and the motor has cut out and stopped when I am stationery.  It restarts again when I turn it over.  I have taken it to another mechanic and they have swapped the 3rd and 4th injectors to see it that would make a difference.  The malfunction light has stayed off, however they got me to take the car on a drive at a speed of 100klms to see what happened.  In doing this, the light came back on for a few seconds and went off again but the motor cut out again when I stopped at an intersection.  They have rescanned it again and it is now showing that the 4th cylinder is fisfiring which indicates that the injector/s need replacing.

Just wondering if anyone else has had this situation before and what the outcome was.

Thank you.

Debbie.  Queensland

 

 

 

Sounds like they have arrived a diagnostic conclusion which seems quite reasonable.
Not sure why it cuts out though, but sometimes this can occur when the engine revs 'stumble'

Please let us know how it all goes