okay so just did a jdm d15b vtec-e swap into my 94 ex coupe, used all the ex stuff such as harness and ecu, intake and exhaust mani, and trans. car has it’s quirks but it runs and drives pretty damn good. vtec engages like a mother compared to other single cams i’ve driven. my only issue is that when revving from a stand still it only goes to 4k and when driving it only goes to 6k. yes i realize it MAY BE because im on a p28 buti dont know. any insight on a solution? the only thing i have a cel for is o2.