What is P1404 : Engine Error code Causes Explained
This Tutorial covers the P1404 engine error code, its causes, and solutions. This diagnostic trouble code (DTC) usually indicates a jammed open EGR valve, which affects performance.
How to Identify a DTCs Number
To identify a DTC (Diagnostic Trouble Code) number like P1404, you need to understand the format and function of the code.
The Diagnostic Trouble Code (DTC) P1404 typically relates to the Exhaust Gas Recirculation (EGR) system.
The trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
This error occurs when the EGR system fails to recirculate exhaust gases properly, leading to increased nitrogen oxide (NOx) emissions.
Causes of P1404 Code:
- Faulty EGR valve:
The most common cause of a P1404 code. - Wiring issues:
Problems with the wiring or connectors for the EGR valve or position sensor. - Faulty EGR valve position sensor:
A faulty EGR valve position sensor can cause a P1404 code. - Carbon buildup:
A buildup of carbon on the EGR valve pintle can restrict the valve’s movement. - Failing PCM:
A failing Powertrain Control Module (PCM) can cause a P1404 code, but this is rare.
Risk Level of P1404 Error Code:
A high-risk level appears when the issue is severe enough to impact drivability, emissions, or cause further engine damage if left unaddressed.
When facing a P1404 code along with by a “High Risk Level” warning, it’s essential to take immediate action.
Common Car Brands Affected by P1404 Code:
The P1404 engine error code is commonly found in follwing List.
- BMW
- Engine Code
- Volkswagen
Video: P1404 Engine Error code
FAQ’s
What does the P1404 error code mean?
The P1404 code indicates a malfunction in the Exhaust Gas Recirculation (EGR) valve, often due to it being stuck in a closed position.
How severe is the P1404 engine code?
It is a moderate-level issue that can affect engine efficiency and emissions but typically does not cause immediate damage.
What causes the P1404 engine code?
Causes include carbon buildup in the EGR valve, faulty EGR solenoid, wiring issues, or a malfunctioning powertrain control module (PCM).