Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the part that helps control pollution isn't working right. It's like if you had a toy that wasn't moving the way it should because something inside is stuck.
The P1404 code indicates an issue with the Exhaust Gas Recirculation (EGR) system, specifically that the EGR valve is not closing properly.
The P1404 code is triggered when the Powertrain Control Module (PCM) detects that the EGR valve is not in the expected closed position. This can be due to a malfunction in the EGR valve itself, or an issue with the EGR position sensor circuit. The EGR system is responsible for recirculating a portion of the engine's exhaust back to the engine cylinders, which helps reduce nitrogen oxide emissions.
• Check Engine Light is on
• Poor engine performance
• Increased emissions
• Faulty EGR valve
• EGR position sensor malfunction
• Wiring issues in the EGR circuit
EGR: Exhaust Gas Recirculation
PCM: Powertrain Control Module
• Use an OBD-II scanner to confirm the code
• Inspect the EGR valve and position sensor
• Check wiring and connections in the EGR circuit
• Replace the EGR valve
• Repair or replace the EGR position sensor
• Fix any wiring issues in the EGR circuit
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Chevrolet Malibu
• Pontiac Grand Am
• Oldsmobile Alero
• Regularly clean the EGR valve
• Perform routine maintenance checks
• Use quality fuel to reduce deposits
Engine Performance
• Have the vehicle inspected by a professional
• Avoid driving long distances until fixed
Check with the vehicle manufacturer for emissions-related component warranty coverage.
The P1404 code has been commonly reported in vehicles with higher mileage and is often associated with EGR system issues.
Moderate – It should be addressed soon to prevent further engine issues.
Driving with this code can lead to increased emissions, which may not comply with local environmental regulations.
• Engine at operating temperature
• Idle conditions
The EGR valve is typically located on the engine intake manifold.
Q: Can I drive with a P1404 code?
A: It's not recommended to drive for long periods with this code, as it can lead to increased emissions and potential engine performance issues.
Q: How do I fix a P1404 code?
A: The fix may involve replacing the EGR valve, repairing the EGR position sensor, or addressing wiring issues in the circuit.
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