Exhaust Gas Recirculation (EGR) Valve Position Failure
EGR valve position sensor is out of expected range.
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 computer checks the position of the EGR valve, which should be opening and closing based on engine conditions. If it doesn't move enough, or at all, this code triggers.
What the computer is actually seeing
The engine control module (ECM) expects the EGR valve to show a certain voltage range (usually 0.5V to 4.5V) as it opens. If the signal is below 0.2V or above 4.8V for more than 5 seconds, a fault is logged.
What a healthy reading looks like
Expected voltage for a properly functioning EGR valve position sensor is between 0.5V and 4.5V during operation.
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.
- 1Check the EGR valve connector and wiring for damage or corrosion. Repair as needed. Decision: Is the wiring intact? Yes - proceed; No - fix wiring.
- 2Test the voltage at the EGR valve connector. It should typically be between 0.5V and 4.5V with the engine running. Decision: Is voltage within range? Yes - proceed; No - replace the EGR position sensor.
- 3Inspect the EGR valve for any sticking or blockage. Clean or replace if necessary. Decision: Is the EGR valve functioning smoothly? Yes - proceed; No - replace the EGR valve.
Common causes
- Faulty EGR valve
- Wiring issues (shorts or opens)
- Bad EGR position sensor
- Clogged passages in EGR system
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
While you can drive, performance may be degraded, and emissions could be affected, so fix it soon.
Will the code come back after clearing?
If the underlying issue isn't fixed, the code will likely return shortly.
Why does this code come with other EGR-related codes?
They're likely caused by the same failure in the EGR system, such as wiring or valve issues.
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 →