Dam I'm still getting the 01-04 code aka (Speed-Sensor). I had this problem with my autotragic. I recently did the 5spd conversion and installed the 5spd ECU. 1 week later the code keeps popping up. I checked wires and sensor, everything seems tight. I've reset the ECU several times, and it still comes back a Day or Two later... Im not sure what to do... Sometimes it may go away, then and pop up randomly.

This code tripped my endine light, but I'm not sure if the ECU is operating at optimal performance. Is the performance some how degraded when this happens??? Need help on this one. Tried every trick in the book. Thanks.