What Does P1487 Mean?
The EGR boost sensor solenoid valve circuit has an open or short condition. This prevents proper boost pressure control for the EGR system, affecting EGR flow measurement and operation.
Common Causes
40%
Failed EGR boost sensor solenoid valve
30%
Damaged wiring or connector to solenoid
15%
Short to ground or power in control circuit
10%
Poor ground connection in solenoid circuit
5%
PCM solenoid driver circuit fault
Diagnostic Steps
1
Step 1: Locate EGR boost sensor solenoid and inspect wiring and connector for damage or corrosion
2
Step 2: Disconnect solenoid and measure coil resistance; compare to manufacturer specification
3
Step 3: Check for power at solenoid connector with ignition on; verify voltage present
4
Step 4: Test control circuit from PCM by checking for switching ground signal during operation
5
Step 5: Check vacuum lines to/from solenoid for proper connection and no leaks
Estimated Repair Cost
$150 - $450
Parts + labor, varies by vehicle and location
The EGR boost sensor solenoid valve circuit has an open or short condition. This prevents proper boost pressure control for the EGR system, affecting EGR flow measurement and operation.
The most common cause of P1487 (EGR Boost Sensor Solenoid Valve Open or Short) is: Failed EGR boost sensor solenoid valve
Typical repair costs for P1487 range from $150 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive but EGR system will not function properly. Will result in emissions test failure and possible driveability concerns.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1487 to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Manufacturer
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