hatch92turbo

We just got finshed doing a B16 swap into my friends EG. He had an LS motor with the jackson on it. But the Jsckson was for an Si(bigger blower). Anyways so the charger still bolts up to his new motor. So today we were pulling the codes on it and it was pulling a 10 and a 17. Which is AIr Temp sensor and a speed sensor. Now yesterday his speedometer started dancing around and waving up and down and then just died. So we figured the speed sensor finally died. So we changed it and the temp sensor too. No CEL. But now it feels like the VTEC isn't engaging at all. He has a P28 ECU but he sent it off and had it chipped for a P30. And had the Vtec to egage at 4500 and redline at 8800. But it feels like it's straining to even get to 7000-7500rpm. Could the computer be messed up or what. And I was wondering where I could go to find a pinout of the P28 or even anybody's opinion on it. Thanks in advance guys