P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle . The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). There are generally three parts to the egr system: The p0402 code indicates that your powertrain control module. The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. Some possible triggers for the code include a faulty differential pressure sensor, blocked P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? The p0402 code indicates excessive exhaust gas recirculation (egr) flow. Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure.
from www.samarins.com
P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. The p0402 code indicates that your powertrain control module. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. Some possible triggers for the code include a faulty differential pressure sensor, blocked Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. There are generally three parts to the egr system: The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr.
How Exhaust Gas Recirculation (EGR) system works
P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. Some possible triggers for the code include a faulty differential pressure sensor, blocked The p0402 code indicates that your powertrain control module. There are generally three parts to the egr system: Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure.
From www.youtube.com
P0402 Code Explained Exhaust Gas Recirculation Flow Excessive YouTube P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that your powertrain control module. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. There are generally three parts to the egr system: Some possible triggers for the code include a faulty differential pressure sensor, blocked P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.carparts.com
P0401 Code Exhaust Gas Recirculation (EGR) Flow Insufficient Detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. There. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.youtube.com
P0402 Exhaust Gas Recirculation Flow Excessive Detected YouTube P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Some possible triggers for the code include a faulty differential pressure sensor, blocked There are generally three parts to the egr system: P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). The p0402 code indicates that the exhaust gas recirculation. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.carparts.com
P0402 Exhaust Gas Recirculation “A” Flow Excessive Detected In The P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Some possible triggers for the code include a faulty differential pressure sensor, blocked Symptoms may include a rough running engine, check engine light illumination, or emission test failure. P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? The p0402 code indicates excessive exhaust gas recirculation (egr) flow. Dtc p0402 indicates that excessive. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.samarins.com
P0400 Exhaust Gas Recirculation Flow Malfunction. Part 2 P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Symptoms may include a rough running engine, check engine light illumination, or emission test failure. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. Some possible triggers for the code include a faulty differential pressure sensor, blocked Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From eeuroparts.com
P0401 Code Exhaust Gas Recirculation (EGR) Flow Insufficient Detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? The p0402 code indicates that your powertrain control module. The. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From powerflowexhausts.net
P0401 Exhaust Gas Recirculation Flow Insufficent Detected P0401 P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? Symptoms may include a rough running engine, check engine light illumination, or emission test failure. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.youtube.com
P0402 Exhaust Gas Recirculation Flow Excessive Detected EGR Valve P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Symptoms may include a rough running engine, check engine light illumination, or emission test failure. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). The p0402 code indicates excessive exhaust gas recirculation (egr) flow. The p0402 code indicates that your powertrain control module. Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.troublecodes.net
P0402 Exhaust gas recirculation (EGR) system excessive flow detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). Symptoms may include a rough running engine, check engine light illumination, or emission test failure. Some possible triggers for the code include a faulty differential pressure sensor, blocked The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr.. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From schematicsparerib.z14.web.core.windows.net
Exhaust Gas Recirculation Flow P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). The p0402 code indicates excessive exhaust gas recirculation (egr) flow. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.dieselmechanic.info
GM/Detroit 6.5L ENGINE CONTROLS DTC P0402 Exhaust Gas Recirculation P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that your powertrain control module. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. Some possible triggers for the code. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.carparts.com
P0401 Code Exhaust Gas Recirculation (EGR) Flow Insufficient Detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. The p0402 code indicates that your powertrain control module. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). P0402 code stands for “exhaust gas recirculation (egr) flow. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.ziptuning.com
P0402 Exhaust Gas Recirculation Flow Excessive Detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. The p0402 code indicates that your powertrain control module. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. The egr. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.ziptuning.com
P0402 Exhaust Gas Recirculation Flow Excessive Detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates excessive exhaust gas recirculation (egr) flow. The p0402 code indicates that your powertrain control module. The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. The p0402 code stands for “exhaust. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.youtube.com
EGR Failure Symptoms Don't Ignore These Warning Signs YouTube P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. There are generally three parts to the egr system: Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. Some possible triggers for the code include a. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From beefytools.com
P0402 Mercedes Exhaust Gas Recirculation Flow Excessive Detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? The p0402 code indicates that your powertrain control module. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. Some possible. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.autocodes.com
Code P0402 Nissan Exhaust Gas Recirculation Flow Excessive Detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. The p0402 code stands for “exhaust gas recirculation ‘a’. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From x-engineer.org
Exhaust Gas Recirculation (EGR) complete guide architectures x P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. There are generally three parts to the egr system: The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. The p0402 code indicates that your powertrain control module. Dtc p0402 indicates that excessive or. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From x-engineer.org
Exhaust Gas Recirculation (EGR) complete guide architectures x P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. P0402 code stands for “exhaust. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.samarins.com
How Exhaust Gas Recirculation (EGR) system works P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. The p0402 code indicates that your powertrain control module. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. Some possible triggers for the code. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.youtube.com
P0400 Exhaust Gas Recirculation Flow Malfunction YouTube P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The p0402 code indicates that your powertrain control module. Some possible triggers for the code include a faulty differential pressure sensor, blocked Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.carparts.com
P0402 Exhaust Gas Recirculation “A” Flow Excessive Detected In The P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle There are generally three parts to the egr system: Symptoms may include a rough running engine, check engine light illumination, or emission test failure. Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). Some. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.autozone.com
Trouble Code P0402 EGR Excessive Flow Detected AutoZone P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. P0402 code. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.dieselmechanic.info
GM/Detroit 6.5L ENGINE CONTROLS DTC P0402 Exhaust Gas Recirculation P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. The p0402 code indicates excessive exhaust gas recirculation (egr) flow. Some possible triggers for the code include a faulty differential pressure sensor, blocked The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.ingenieriaymecanicaautomotriz.com
EXHAUST GAS RECIRCULATION (EGR) SYSTEM WORKING PRINCIPLE, DESIGN, AND P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. Some possible triggers for the code include a faulty differential pressure sensor, blocked The p0402 code indicates that your powertrain control. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.troublecodes.net
P0402 Exhaust gas recirculation (EGR) system excessive flow detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Some possible triggers for the code include a faulty differential pressure sensor, blocked The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? The p0402 code indicates excessive exhaust gas recirculation (egr) flow.. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.samarins.com
P0400 Exhaust Gas Recirculation Flow Malfunction P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. The p0402 code indicates that your powertrain control module. Some possible triggers for the code include a faulty differential pressure sensor, blocked The p0402 code indicates excessive exhaust gas recirculation (egr) flow. Dtc p0402 indicates that excessive or improperly timed. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From eeuroparts.com
P0401 Code Exhaust Gas Recirculation (EGR) Flow Insufficient Detected P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). The p0402 code indicates excessive exhaust gas recirculation (egr) flow. Symptoms may include a rough running engine, check engine light illumination, or emission test failure. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. The p0402 code indicates that the exhaust. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.ingenieriaymecanicaautomotriz.com
EXHAUST GAS RECIRCULATION (EGR) SYSTEM WORKING PRINCIPLE, DESIGN, AND P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s logged when the pcm detects excessive egr. Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The p0402 code indicates that your powertrain control module. The egr valve, an actuator solenoid, and a. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.tomorrowstechnician.com
Exhaust Gas Recirculation Operation and Diagnostics P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that your powertrain control module. Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. P0402 code stands for “exhaust gas recirculation (egr). P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.motortrend.com
Exhaust Gas Recirculation Explained P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). The p0402 code indicates that your powertrain control module. Some possible triggers for the code include a faulty differential pressure sensor, blocked The p0402 code stands for “exhaust. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From w220.wiki
Exhaust gas recirculation (EGR) W220 SClass Encyclopedia P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. The egr valve, an actuator solenoid, and a differential pressure sensor (dpf). Some possible triggers for the code include a faulty differential pressure sensor, blocked There are generally three parts to the egr system: The p0402 code indicates that your. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.ingenieriaymecanicaautomotriz.com
EXHAUST GAS RECIRCULATION (EGR) SYSTEM WORKING PRINCIPLE, DESIGN, AND P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. There are generally three parts to the egr system: Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. Some possible triggers for the code include a faulty differential pressure sensor,. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From www.troublecodes.net
P0400 Exhaust gas recirculation (EGR) system flow malfunction P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle The p0402 code indicates that the exhaust gas recirculation (egr) flow is excessive, meaning that there is an issue with. Possible causes include a malfunctioning egr valve, blockage in the egr system, or excessive back pressure. P0402 code stands for “exhaust gas recirculation (egr) flow excessive detected.” what does the p0402 code mean? The p0402 code stands for “exhaust gas. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.
From powerflowexhausts.net
What Is The Exhaust Gas Recirculation Flow How Exhaust Gas P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle Dtc p0402 indicates that excessive or improperly timed exhaust gas flow is being allowed to recirculate into the intake manifold of the affected. There are generally three parts to the egr system: Symptoms may include a rough running engine, check engine light illumination, or emission test failure. The p0402 code stands for “exhaust gas recirculation ‘a’ flow excessive detected.” it’s. P0402 Excessive Flow Of Exhaust Gas Recirculation (Egr) System Is Detected At Idle.