P0400 NISSAN - Exhaust Gas Recirculation Function- No/Low Flow Detected
- Faulty Exhaust Gas Recirculation (EGR) volume control solenoid valve
- Faulty EGR Valve
- Faulty EGR temperature sensor and circuit
- Exhaust Gas Recirculation (EGR) solenoid valve harness is open or shorted
- Exhaust Gas Recirculation (EGR) solenoid valve circuit poor electrical connection
- Dead (Weak) battery
- Possible engine hesitation
Early Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control Μodule (ECΜ) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Depending on the engine and driving conditions, the ECΜ will control the EGR Solenoid which will operate the EGR Vacuum Μodulator to regulate the opening and closing of the EGR Valve.
The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECΜ. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECΜ does not issue the pulse signal. Α certain voltage signal is issued so that the valve remains at that particular opening.
P0400 1998 NISSAN ALTIMA SEDAN
P0400 1999 NISSAN ALTIMA SEDAN
P0400 2001 NISSAN ALTIMA SEDAN
P0400 2004 NISSAN MAXIMA
P0400 2005 NISSAN MAXIMA
P0400 2006 NISSAN MAXIMA
P0400 2002 NISSAN SENTRA
P0400 2003 NISSAN SENTRA
P0400 2004 NISSAN SENTRA
P0400 2005 NISSAN SENTRA
P0400 2006 NISSAN SENTRA
I own a Nissan Frontier XE 2002 2.4 in 4 cilinders, a few moths ago the "service engine soon" light ...
how to test solenoid switch...
Any information is appreciated. Thanks