Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that helps control pollution. It's like a door that should open and close, but it's stuck open.
The P0487 code indicates that the engine control module (ECM) has detected an issue with the EGR throttle control circuit, specifically that it is open or not functioning properly.
The Exhaust Gas Recirculation (EGR) system reduces nitrogen oxide emissions by recirculating a portion of the exhaust gases back into the engine cylinders. The EGR throttle control circuit is responsible for controlling the throttle valve position within the EGR system. An 'open' circuit means there is a break or disconnection in the wiring or components involved.
• Check Engine Light illuminated
• Poor engine performance
• Increased emissions
• Faulty EGR throttle control valve
• Open or shorted wiring in the EGR throttle control circuit
• Faulty ECM
EGR: Exhaust Gas Recirculation
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or disconnection.
• Test the EGR throttle control valve for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the EGR throttle control valve if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance of the EGR system
• Ensure clean and secure electrical connections
• Use quality fuel to reduce deposits
Sensor Issue
• Avoid driving with the Check Engine Light on for extended periods.
• Schedule a diagnostic check with a professional mechanic.
• Keep up with regular vehicle maintenance.
Check if the vehicle is still under warranty for emissions-related components.
The P0487 code has been associated with issues in vehicles with electronic EGR systems since the early 2000s.
Moderate – While not immediately critical, it should be addressed to prevent increased emissions and potential engine performance issues.
Driving with unresolved emissions issues may not comply with local environmental regulations.
• Engine at operating temperature
• Vehicle in closed-loop mode
The EGR throttle control valve is typically located near the intake manifold or the EGR valve itself.
Q: Can I drive with a P0487 code?
A: You can drive short distances, but it's best to fix the issue soon to avoid increased emissions and potential engine problems.
Q: Will a P0487 code affect my vehicle's emissions test?
A: Yes, it can cause your vehicle to fail an emissions test due to increased nitrogen oxide emissions.
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