what could be the problem with my car, premio 1998 d4 engine, i have to start for several times(3) for the car to start.(hard start) it has engine check code 12,which has failed to clear up even after replacing crank and oxygen sensor and also clearing the computer memory by removing battery terminal and wait for 20 min. i recently purchase Eobd/obd2 code scanner could not link with ECM, what could be the possible DTL connector, pin layout are 4,6,7,9,13,14,16. Anyone with an idea?