Good morning guys, For few days now, I noticed my Camry fails to start once in the morning unlike before. It now starts on switching key for second attempt. Jerks often on pressing gas pedal causing misfiring. I've changed fuel filter, spark plugs and ignition test works fine. The problem still persist. This resulted into bad fuel economy. Mechanic suggests I bring it back for injector cleaning and fuel pump replacement today. Kindly advice on possible cause and remedy pls. Thanks.

Try and check your air filter...
Might be clogged and dirty...and make sure the injector mouth is serviced