Hi Scotty,

Big fan of your channel form Nigeria. I have a 2007 honda civic with 193k miles, car runs smooth with no issues for normal driving at speeds less than 50 to 60 mph. Once I'm over that speed mostly on highways the car occasionally looses power and put out p0606 code  only (ECU malfunction) . At that point the car slows down and won't accelerate, I have to park, turn off the engine and then restart the car and then it runs well. The code goes away after a day or two but come back on whenever I am at highway speeds above 50 to 60mph.

Apart from this,  everything works well,  I changed the vtec solenoid but the issues still persist.

Kindly assist with an advice on how this can be resolved, 

Thanks scotty