Posts Tagged: Honda hard start

Honda P0300 and hard start: Suspect the oil control solenoid

Diagnose and fix Honda P0300 code and hard starting 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 the … Read More