THE DIFFERENCE BETWEEN 1078 & 1077?

Question

HAVE ALREADY REPLACE CONTROL VALVE, POSITION SENSOR, ACTUATER.

Answer 1

Hi there,

Both these codes point to the same issue. The control valve isn't working in high or low speed. Since replacing the valve hasn't solved the issue, it's most likely a wiring issue. Here is some more info for you.

P1077 HONDA - Intake Manifold Runner Control System Malfunction Low RPM

Read more: https://www.autocodes.com/p1077_honda.html