P0300 Mazda -

Question

constanat mis firing of my engine during accelerating

Answer 1

what have you done or haven't done? 

you will have to go through list below. if you have not replaced the spark plugs start there 

Possible causes

- Faulty spark plug (s) 

- Faulty ignition coil (s) 

- Clogged or faulty fuel injector (s)

- Intake air leak

- Fuel injectors harness is open or shorted

- Fuel Injectors circuit poor electrical connection

- Ignition coils harness is open or shorted

- Ignition coils circuit poor electrical connection

- Insufficient cylinders compression

- Incorrect fuel pressure

 

 

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