P041E
EGR Temperature Sensor B Circuit Intermittent/Erratic
EGR / emissions
Generic OBD-II
Medium
What it means
P041E means the "B" EGR (exhaust gas recirculation) temperature sensor signal is cutting in and out or jumping around. This is typically an intermittent wiring or connector fault, or a failing sensor. It's an emissions-monitor issue that rarely affects how the car drives, but the intermittent nature makes careful wiring inspection the key to fixing it.
Medium
Can I keep driving? Safe to keep driving in the short term — this is an emissions monitor fault, not a running problem — but it will fail an emissions test and should be repaired.
Common symptoms
What you'll notice
- Check-engine light on
- Usually no noticeable change in how the car drives
- Light may come and go as the signal drops out
- Failed or incomplete EGR emissions monitor
Common causes
Most likely first
- Faulty EGR temperature sensor BLikely
- Intermittent open or short in the sensor wiringCommon
- Loose or corroded connector at the sensorCommon
- Carbon buildup affecting the sensor's temperature readingLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and note the conditions when the fault appears.
- Wiggle-test the sensor connector and wiring while watching the signal for dropouts.
- Inspect the connector and harness for corrosion, chafing, or a loose pin.
- Check the EGR passages for carbon that could skew readings.
- Replace the EGR temperature sensor B if it tests faulty; clear and re-test.
FAQ
Quick answers
Is it safe to drive with P041E?+
Yes, generally. It's an intermittent emissions-sensor fault, so the car usually drives normally, but repair it to keep EGR accurate and pass emissions.
Can I just clear P041E?+
It will return the next time the signal drops out. The intermittent wiring or sensor fault must be fixed first.
Related codes
Often seen with P041E
Read & clear P041E yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX