P0400 1998 NISSAN ALTIMA SEDAN Exhaust Gas Recirculation Function- No/Low Flow Detected

Possible causes – Exhaust Gas Recirculation (EGR) volume control valve stuck closed– 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 Tech…

P0400 1998 NISSAN ALTIMA SEDAN Exhaust Gas Recirculation Function- No/Low Flow Detected

Possible causes – Exhaust Gas Recirculation (EGR) volume control valve stuck closed– 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 Tech…

P0400 1999 NISSAN ALTIMA SEDAN Exhaust Gas Recirculation Function- No/Low Flow Detected

Possible causes – Exhaust Gas Recirculation (EGR) volume control valve stuck closed– 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 Tech…

P0400 2001 NISSAN ALTIMA SEDAN Exhaust Gas Recirculation Function- No/Low Flow Detected

Possible causes – Exhaust Gas Recirculation (EGR) volume control valve stuck closed– 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 Tech…

P014C NISSAN Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response

Possible causes – Faulty Air Fuel Ratio (A/F) Sensor 1 Bank 1– Air Fuel Ratio (A/F) Sensor 1 Bank 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection Tech description Replacing the Air Fuel Ratio Sensor 1 Bank 1 usually takes care of the problem. When…

P014C NISSAN SENTRA Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response

Possible causes – Faulty Air Fuel Ratio (A/F) Sensor 1 Bank 1– Air Fuel Ratio (A/F) Sensor 1 Bank 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection Tech description Replacing the Air Fuel Ratio Sensor 1 Bank 1 usually takes care of the problem. When…

P014D NISSAN Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response

Possible causes – Faulty Air Fuel Ratio (A/F) Sensor 1 Bank 1– Air Fuel Ratio (A/F) Sensor 1 Bank 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection Tech description Replacing the Air Fuel Ratio Sensor 1 Bank 1 usually takes care of the problem. When…

P014D NISSAN SENTRA Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response

Possible causes – Faulty Air Fuel Ratio (A/F) Sensor 1 Bank 1– Air Fuel Ratio (A/F) Sensor 1 Bank 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection Tech description Replacing the Air Fuel Ratio Sensor 1 Bank 1 usually takes care of the problem. When…

P015A NISSAN Air Fuel Ratio Sensor 1 Bank 1 Circuit Delayed Response

Possible causes – Faulty Air Fuel Ratio (A/F) Sensor 1 Bank 1– Engine Control Module (ECM) program outdated– Air Fuel Ratio (A/F) Sensor 1 Bank 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection Tech description Replacing the Air Fuel Ratio Sensor 1 Bank 1 usually…

P1447 NISSAN Evaporative Emission Control System Purge Flow Monitor

Possible causes – EVAP canister purge volume control solenoid valve stuck closed – EVAP control system pressure sensor and the circuit – Loose, disconnected or improper connection of rubber tube – Blocked rubber tube – Cracked EVAP canister – EVAP canister purge volume control solenoid valve circuit – Closed throttle position switch – Blocked purge…