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 has detected a problem with the part that controls the flow of exhaust gases back into the engine. It's like a valve that isn't opening or closing properly.
The EGR (Exhaust Gas Recirculation) system helps reduce emissions by recirculating a portion of the exhaust gases back into the engine cylinders. Code P2143 indicates an issue with the electrical circuit that controls the EGR vent, suggesting it is open or not functioning correctly.
P2143 is triggered when the Engine Control Module (ECM) detects an open circuit in the EGR vent control circuit. This could be due to a malfunctioning EGR valve, wiring issues, or a faulty ECM. The EGR system is crucial for reducing NOx emissions by recirculating a portion of the exhaust gases back into the engine.
• Check Engine Light is on
• Poor engine performance
• Increased emissions
• Faulty EGR valve
• Open or shorted EGR vent control circuit
• Faulty ECM
EGR: Exhaust Gas Recirculation
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the EGR valve and its wiring for damage.
• Test the EGR vent control circuit for continuity.
• Replace the EGR valve if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $600
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance of the EGR system.
• Use quality fuel to reduce carbon buildup.
• Check and clean EGR passages periodically.
Engine Performance
• Have a professional diagnose and repair the issue.
• Avoid driving the vehicle until the problem is fixed to prevent further damage.
• Regularly check for updates on vehicle recalls related to the EGR system.
Check with your vehicle manufacturer for specific warranty coverage on emissions-related components.
EGR system issues have been common in vehicles since the introduction of emission control systems in the 1970s. P2143 is a more recent code that specifically addresses electrical issues in the EGR vent control.
Moderate – While the vehicle may still be drivable, it is important to address this issue to prevent increased emissions and potential engine damage.
Driving with a malfunctioning EGR system can lead to increased emissions, which may not comply with local environmental regulations.
• Engine running at operating temperature
• Vehicle at idle or low speed
The EGR valve is typically located on or near the intake manifold.
Q: Can I drive with a P2143 code?
A: It's not recommended to drive with this code as it can lead to increased emissions and potential engine damage.
Q: How serious is the P2143 code?
A: It's moderately serious. While it may not cause immediate harm, it should be addressed to ensure proper vehicle performance and emissions compliance.
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