P0487
EGR Throttle Control Circuit A /Open
P0487 is an OBD-II diagnostic trouble code meaning: EGR Throttle Control Circuit A /Open. Common causes: open or short circuit in wiring harness, egr control solenoid malfunction. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation at idle
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Open or short circuit in wiring harness
- EGR control solenoid malfunction
- Problems with the EGR throttle valve (stuck, dirty)
- Poor contact in connectors
- Engine control unit (ECU) malfunction
How to Fix
- Check the integrity of the EGR control circuit wiring harness
- Check resistance and operation of control solenoid
- Clean or replace EGR throttle body
- Check contacts in connectors, clean from corrosion if necessary
- Check control circuit power supply
- If necessary, replace faulty components
Related codes
Error P0487 by Vehicle Brand
FAQ
What does the P0487 code mean?
P0487 is an OBD-II diagnostic trouble code that indicates: EGR Throttle Control Circuit A /Open
What causes a P0487 error code?
The most common causes of P0487 include: Open or short circuit in wiring harness; EGR control solenoid malfunction; Problems with the EGR throttle valve (stuck, dirty); Poor contact in connectors.
How do I fix a P0487 diagnostic trouble code?
To fix P0487: Check the integrity of the EGR control circuit wiring harness. Check resistance and operation of control solenoid. Clean or replace EGR throttle body. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0487?
Limited driving only, diagnose soon
How much does it cost to fix P0487?
The estimated repair cost for P0487 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat