Nav System Resets and Engine Bucks
 

Hello all,

2006 Pilot with about 190K. The navigation system started intermittently turning off and on. About every 10-15th time the nav resets, the engine will buck and surge, as if the car has lost spark momentarily or the firing order is messed up. No codes. New ignition switch did not fix. Any ideas? What is connecting the nav system to engine management?