What causes P0404 code?
What causes P0404 code?
Diagnostic Trouble Code (DTC) P0404 stands for Exhaust Gas Recirculation Circuit Range/Performance Problem. It is a generic OBD trouble code that activates if the powertrain control module (PCM) detects erratic Exhaust Gas Recirculation (EGR) valve performance.
How do you fix an exhaust gas recirculation circuit malfunction?
What repairs can fix the P0403 code?
- Replacing the shorted or open EGR vacuum solenoid.
- Replacing a corroded connector to the EGR vacuum control solenoid.
- Repairing the wiring shorted to the EGR vacuum control solenoid.
What does exhaust gas recirculation control circuit mean?
The exhaust gas recirculation (EGR) system helps minimize nitrogen oxide gases coming from your vehicle’s exhaust. On GM vehicles (such as a 2016 Silverado), the P0403 code is stored when: The ECM/PCM detects an open circuit condition of an EGR motor control circuit for greater than 3 seconds.
What is EGR a control circuit range performance?
Exhaust Gas Recirculation Circuit Range/Performance Using the information from the EGR, the power control module (PCM) controls the valve to regulate the exhaust fumes going through the cylinders. The valves will open or close to increase or reduce the exhaust fumes flow depending on how your engine runs.
Can you drive with P0404 code?
What Does Code P0404 Mean? Issue Severity: MODERATE – Extended driving with this code may cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible.
How do I fix code P0404?
What repairs can fix the P0404 code?
- Replacing the EGR valve if it stuck partly open from carbon buildup in the pintle area and cannot be cleaned.
- Replacing the EGR position sensor if it is determined that it cannot give a correct input reading to the ECM when moved manually.