EGR Position Sensor Circuit
EGR position sensor is reading out of range.
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What it means (plain English)
The EGR position sensor tells the computer how much exhaust gas is being recirculated. If it reports a value that's too high or too low, the engine may not run right properly.
What the computer is actually seeing
The engine control module (ECM) expects the EGR position sensor to provide a voltage signal that correlates to the position of the EGR valve. Normally, this should range from 0.5V (closed) to 4.5V (fully open).
What a healthy reading looks like
0.5V to 4.5V for EGR valve position; anything outside this range triggers the fault code.
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 wiring and connector for the EGR position sensor for damage, corrosion, or loose connections. If found, repair and retest.
- 22. Measure the voltage at the EGR position sensor. It should read between 0.5V (closed) and 4.5V (open). If out of range, replace the sensor.
- 33. Test the EGR valve operation. Apply vacuum to the valve and monitor its movement. If it does not move correctly, replace the EGR valve.
- 44. Clear the code and take the vehicle for a test drive to see if the code returns.
Common causes
- Faulty EGR position sensor
- Wiring or connector issue in the EGR circuit
- Defective EGR valve
- Exhaust system obstruction
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It can be driven but expect possible performance issues and increased emissions. Fix it soon.
Will this code come back after clearing?
If the underlying issue isn't resolved, yes, it will return.
Why is this code paired with other EGR codes?
Similar faults can trigger multiple codes, especially if wiring or the EGR system is involved.
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