Exhaust Gas Recirculation (EGR) Position Sensor Circuit High
The EGR position sensor signal is too high, indicating a potential issue with the EGR system.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The EGR position sensor measures how much exhaust gas is being sent back into the engine. If it reads too high, it means the computer thinks more exhaust gas is being added than should be.
What the computer is actually seeing
The ECM sees a voltage signal from the EGR position sensor that exceeds typical operating levels, usually over 4.5 volts when it should be around 0.5 to 4 volts in normal operation.
What a healthy reading looks like
EGR position sensor voltage should range from 0.5 to 4 volts as per design under various operating conditions.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the EGR position sensor voltage with a multimeter. Key ON, engine OFF, the voltage should be between 0.5 to 4 volts.
- 22. Inspect the wiring and connectors to the EGR position sensor for damage, corrosion, or loose connections.
- 33. If the voltage is above 4.5 volts, check for a short to power in the EGR circuit. Repair as necessary and retest.
- 44. If wiring is good and voltage is within normal range, test the EGR valve operation; it should move smoothly when commanded.
- 55. If the EGR valve does not respond correctly or is stuck open, replace it.
Common causes
- Faulty EGR position sensor
- Wiring issues in the EGR circuit
- Short to voltage in the EGR sensor circuit
- Failed EGR valve
- Excessive carbon buildup in the EGR system
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive with this code as it can lead to increased emissions and potential engine performance issues.
Will this code come back after clearing?
If the underlying issue isn't fixed, the code will likely return.
Why does this code appear with other SPN codes?
Codes often pair together because they relate to the same system, and a fault in one component can affect others.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →