during cold temperature day / night time, my car fule supply is good, either low or high rpm. but within high temperature day ( hot day ), i'm feeling that my fuel not supply enough on the high rpm. and sometimes, after i off the engine, and when i want to start the engine once again, it will take more than 2 kick.....is there a problem with my alternator, fuel pumps or oil pumps etc?....sometimes, during engagement, my vtec sounds not so smooth, what i mean is vtec sounds more than 1, or even worse 3 times open...

 

anybody had experienced this problem?