What are the symptoms of the p0401 OBD-II trouble code?
The EGR temperature sensor is not registering enough of a temperature change when the EGR valve is opened. The EGR passages are partly blocked and will not allow enough flow of exhaust gases into the intake manifold. What are the symptoms of the P0401 code? The Check Engine Light will be illuminated and the code is set in ECM memory.
What does error code p0401 mean on Chevy Volt?
Getty Matthew Wright has been a freelance writer and editor for over 10 years and an automotive repair professional for three decades specializing in European vintage vehicles. Error Code P0401, which shows up in cars like the Chevrolet Volt, has become infamous for alerting mechanics to a poorly functioning exhaust gas recirculation (EGR) system.
What does the EGR error code p0401 mean?
In the shop’s defense, replacing your EGR valve probably would eliminate the error code, turn off the CEL, and allow you to pass emissions inspection. One thing is certain: the P0401 error code specifically means you have “reduced flow” in your exhaust gas recirculation system.
Is the p0401 code dangerous for your safety?
P0401 code is considered a serious one. Severe damage to the pistons and valves could happen due to the high combustion temperatures and pinging ignition. That’s why this code shouldn’t be left ignored for a long time. But is it Risky For My Safety? No, this code doesn’t pose a safety risk at all to you.
The EGR temperature sensor is not registering enough of a temperature change when the EGR valve is opened. The EGR passages are partly blocked and will not allow enough flow of exhaust gases into the intake manifold. What are the symptoms of the P0401 code? The Check Engine Light will be illuminated and the code is set in ECM memory.
Getty Matthew Wright has been a freelance writer and editor for over 10 years and an automotive repair professional for three decades specializing in European vintage vehicles. Error Code P0401, which shows up in cars like the Chevrolet Volt, has become infamous for alerting mechanics to a poorly functioning exhaust gas recirculation (EGR) system.
In the shop’s defense, replacing your EGR valve probably would eliminate the error code, turn off the CEL, and allow you to pass emissions inspection. One thing is certain: the P0401 error code specifically means you have “reduced flow” in your exhaust gas recirculation system.
P0401 code is considered a serious one. Severe damage to the pistons and valves could happen due to the high combustion temperatures and pinging ignition. That’s why this code shouldn’t be left ignored for a long time. But is it Risky For My Safety? No, this code doesn’t pose a safety risk at all to you.