P0410 — Exhaust Gas Recirculation Sensor B Circuit High
Drive with caution — fix soon.
What P0410 means
This code means the engine computer is detecting too high a voltage signal from the 'B' EGR position sensor, which tracks the movement of the exhaust gas recirculation valve. It usually points to a wiring short to voltage, a bad sensor, or a sticking EGR valve. It's a fairly common code and is often fixable without major engine work.
Common symptoms
- Check engine light is on
- Rough idle or slight engine shaking
- Reduced power or hesitation when accelerating
- Slightly worse fuel economy
- May fail an emissions test
Common causes
- Faulty EGR position sensor (B)
- Short to voltage in the sensor circuit
- Damaged or corroded wiring or connector at the EGR sensor
- Failing or stuck EGR valve
- Poor ground reference to the sensor
Typical repair cost
$150 – $450
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0410 code?
For short trips, usually yes, since it's mostly an emissions and sensor issue and won't typically leave you stuck. Still, don't rely on it long-term, as a failing EGR system can hurt fuel economy and cause an emissions failure. Get it diagnosed soon.
How much does it cost to fix a P0410?
Most repairs run between about $150 and $450. Wiring or connector repairs are at the low end, while replacing the EGR position sensor or the EGR valve costs more.
Is a P0410 code serious?
It's not an emergency and rarely strands you, but it shouldn't be ignored. Over time it can worsen fuel economy, cause rough running, and lead to a failed emissions test.
What does the 'B' sensor circuit high mean in P0410?
It means the EGR position sensor 'B' is sending a higher-than-expected voltage, usually from a wiring short to voltage, a bad sensor, or a faulty connector rather than engine damage itself.