Rick's Free Auto Repair Advice

Posts Tagged: Honda hard start

Honda hard start, rough idle P0300

Diagnose and fix Honda hard start, rough idle P0300 If you have a Honda hard start, rough idle P0300 condition, read this post for the fix. Late model Honda engines are built with variable valve timing mechanisms that rotate the camshaft to change valve timing to reduce emissions and increase power and fuel economy. The mechanical advance/retard mechanisms are driven by oil pressure. The amount of oil pressure is controlled by the Variable Timing Control (VTC) oil control solenoid. Camshaft position sensor A detects the intake camshaft angle and sends … Read More


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