Think I have a leaking injector car hesitate

Question

My 06 hhr hesitate to start and when it does an I ride a few blocks park and let run it will shut off. Auto zone code reads p0300 possible solution cylinder head is that the final say no if ands or butts. It has brand new O2 sensor up an down coils plugs injections mass air flow sensor evaporated solenoid. What could be the cause it keeps shutting off.

Answer 1

When there is a random misfire condition, the engine the way it is running may not be able to maintain its target idle. misfire causes the catalytic convertor to overheat, you would end up creating more problem than what you have now