I am trying to jump my ecu but the check engine light only comes on when i drive the vehicle for 30 mins and when i turn off the car and turn it back on...the check engine light will go off until another 30 mins or so....and i can't jump the code by using and paper clip....anyone know what i can do to find out the what code its throwing?? BTW: its running a OBD1 stock LS ecu with OBD2 to OBD1 converter harness....any help will be appreciated...