I recently had my car manual converted and swapped to a F20B and finally tested out my p28 that got chipped and uses a crime basemap. My car shakes a lot when it's around 1200 on the tach and redlines at around 3500. I borrowed a friend's P28 with a B16 basemap and everything ran fine, does anyone know what could be wrong?

 

Sounds like limp mode, is the cel(check engine light) on? Maybe the other ecu has something disabled that your ecu does not.

Have you tried contacting the person/company that chipped the ecu?

 

Problem solved, it was a bad base map on the chip.