Exhaust Gas Recirculation Sensor B Circuit Intermittent
The P2390 code means the vehicle's onboard diagnostic system has detected: Exhaust Gas Recirculation Sensor B Circuit Intermittent. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $150 - $450 (parts and labor)
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What Are the Symptoms of P2390?
- Check Engine Light on
- Rough idle or engine hesitation
- Increased NOx emissions
- Engine pinging or knocking under load
- Reduced fuel economy
What Causes P2390? (Most Likely First)
- Loose EGR sensor connector Very High
- Intermittent wiring break in sensor circuit High
- EGR valve sticking intermittently due to carbon Moderate
- PCM connector issue Low
Can I Still Drive with P2390?
Short distances only. P2390 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P2390 mean?
P2390 indicates an EGR (Exhaust Gas Recirculation) system issue: Exhaust Gas Recirculation Sensor B Circuit Intermittent. The EGR system reduces nitrogen oxide emissions by recirculating a portion of exhaust gas back into the intake.
Can I drive with P2390?
You can drive short distances. The engine may run rough or ping under load, and emissions will be higher than normal. Schedule a repair soon.
How much does it cost to fix P2390?
Most EGR repairs cost $150 to $450. Cleaning the valve may be sufficient ($100-$200), while a full replacement runs $200-$450.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P2390?
-
Scan for P2390 and review freeze frame conditions
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Inspect EGR valve for carbon buildup and free movement
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Test EGR sensor B signal voltage and compare to specifications
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Check EGR passage and tube for blockage or restriction
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Which Vehicles Commonly Get P2390?
- 2015-2023 Volkswagen Jetta 1.4L Turbo I4
- 2011-2019 Ford F-150 5.0L V8
- 2012-2019 Toyota Camry 3.5L V6
- 2010-2018 Hyundai Sonata 2.0L Turbo I4
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