P0404 Code

P0404 Code: Symptoms, Causes, and Solution

For most makes and models of vehicles, a trouble code P0404 is the result of an improper reading from your exhaust gas recirculation valve

p0404 The P0404 code error comes when the EGR doesn't behave as it should Most of the time, it's because the valve doesn't open Besides the valve

p0404 If you own a Saturn S-series and keep getting the code P0404 and your check engine light is on, you probably need to perform an EGR cleaning