1998 nissan 200sx 1.6L code P1400 what does it mean

Question

what does P1400 mean on my 1998 nissan 200sx 1.6L

Answer 1

Hi there,

The EGRC-solenoid valve responds to signals from the ECM. When the ECM sends an ON (ground) signal, the coil in the solenoid valve is energized. The vacuum signal passes through the solenoid valve. The signal then reaches the EGR valve. When the ECM sends an OFF signal, a plunger will then move to cut the vacuum signal from the intake manifold collector to the EGR valve.

When you have this code you have to make sure that the egr valve gets vacuum to it when you snap the throttle with the engine running. Many times the vacuum line between the egr and the egr solenoid burns out and needs to be replaced.