P1259 Honda -

Question

replaced vtec part from dealer and still get same code, removed fuse#6for 15 seconds still comes up. Will cleaning the intake manifold help this problem?

Answer 1

P1259 Problem in the VTEC oil pressure switch circuit or VTEC solenoid valve circuit

P0113 High voltage in IAT (intake air temperature ) sensor circuit

When you get any code that is circuit high this mostly a disconnection of that sensor or the sensor is failed, As for the VTEC cleaning the intake will not help, you dealing with a ECM problem or a electrical issue of the VTEC, The best way to resolve this is to use a good known ECM.