EGR Position Sensor - Voltage Above Normal
The EGR position sensor is reading a voltage that's higher than expected.
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 tells the engine computer how much exhaust gas is being recirculated. When it sees more voltage than it should, it thinks there's a problem with the EGR system.
What the computer is actually seeing
The ECM expects the EGR position sensor to provide a voltage signal that represents the actual position of the EGR valve. If it exceeds a specific threshold (generally over 4.5V), the ECM throws this code.
What a healthy reading looks like
EGR position sensor voltage should be between 0.5V and 4.5V under normal 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.
- 1Check for visible damage to the EGR wiring and connectors; ensure they are secure and free of corrosion.
- 2Using a multimeter, measure the voltage at the EGR position sensor connector; it should be between 0.5V and 4.5V.
- 3If the voltage is above 4.5V, inspect the wiring for shorts to power or open circuits. Repair as necessary.
- 4If wiring is okay, replace the EGR position sensor and retest the system.
Common causes
- Shorted or damaged wiring in the EGR circuit
- Faulty EGR position sensor
- EGR valve malfunction
- Poor ground connections
Typical repair cost
$$
Related codes
Frequently asked questions
Can I still drive the vehicle with this code?
Yes, but it may affect performance or emissions; fix it soon.
Will this code come back after clearing it?
It may if the underlying problem isn’t fixed, such as wiring issues or a faulty sensor.
What if it pairs with other codes?
Examine those codes too; they might indicate related issues with the EGR system.
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 →