P1400 NISSAN - EGRC Solenoid Valve
Repair Importance Level:
Repair Difficulty Level:
- Faulty EGRC-solenoid valve
- EGRC-solenoid valve harness is open or shorted
- EGRC-solenoid valve electrical circuit poor connection
Check electrical connector at the EGR
solenoid valve and check for loose or clogged EGR
solenoid valve hoses.
When is the code detected?
Malfunction is detected when the improper voltage signal is sent to Engine Control Module (ECM) through EGRC-solenoid valve.
- Engine Light ON (or Service Engine Soon Warning Light)
P1400 Nissan Description
The EGRC-solenoid valve responds to signals from the Engine Control Module (ECM). When the ECM sends an ON (ground) signal, the coil in the solenoid valve is energized. The vacuum signal (from the intake manifold collector) 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.
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