I recently installed a D15b engine in place of a burnt out D16y8. Everything went well with the install and the motor runs perfect. I am however having an issue with power, it is almost like the wrong transmission is the car (though it's correct). If I drive up any grade I need to downshift to get the torque I need otherwise I will decellerate quickly. I have checked my Vtec solenoid (jumped to battery) and it seems to function I am just wondering why the car has no torque. This was also an issue when the orginal D16y8 engine was in the car when I bought it. Any help would be appreciated.