Viewer-submitted questions for The Car Doctor: Q: I have a 2006 Nissan Murano that keeps getting the code P1778, indicating a faulty stepper motor. I put in a stepper motor, but the engine light keeps ...

Q. I need some help. I have a 2006 Nissan Murano that keeps getting the code P1778. The code is for a faulty stepper motor. I put in a stepper motor, but the engine light came back on keep and I am ...

Q. I need some help. I have a 2006 Nissan Murano that keeps getting the code P1778. The code is for a faulty stepper motor. I put in a stepper motor, but the engine light came back on and I am getting ...