i just my B20/type r together and when i give it gas and let it go the rpm's drop lower than suppose to and car stauls out. it starts and idles fine, once the trottle is enaged at whatever rpm and i let it off it stauls out. i have a vtec controller could i fix it with that or would it be something else?

 

i also had a small leak where the oil pressure sensor screws into the block. i checked it and was very loose come to find out it is stripped, i am repairing that as of now. could this be a reason of stauling, maybe pressure was lowand off the normal pressure???