OBD-II trouble code
P2413: Exhaust Gas Recirculation System Performance
The EGR system isn't performing the way the PCM expects — actual exhaust-gas recirculation doesn't match the commanded amount. It's a performance code rather than a single circuit fault, and the overwhelmingly common cause is carbon: clogged EGR passages, a sticking valve, or a fouled cooler. Cleaning or replacing the EGR valve and clearing the passages is the usual fix.
Quick facts
- System
- Powertrain
- Category
- Emissions / EGR
- Severity
- Medium severity
- Drivable
- Usually safe to drive short-term
- Repair cost range
- $100 – $800
- DIY difficulty
- Intermediate DIY
What does P2413 mean?
Exhaust gas recirculation routes a measured amount of inert exhaust gas back into the intake to lower combustion temperatures and cut NOx emissions. The PCM commands a target EGR flow and monitors the result through sensors and its effect on intake conditions. P2413 sets when the system's actual performance doesn't match what was commanded — too little or too much flow, or flow that doesn't respond correctly. Unlike a circuit code that points at a wire, this is a system-performance fault: the EGR isn't doing its job, and the cause is usually mechanical restriction or a sticking valve rather than an electrical fault.
Carbon is the dominant villain. EGR routes hot, sooty exhaust, and over time that soot cakes the valve, the ports, and the passages, so the valve sticks or the flow path clogs. A valve stuck closed or restricted passages starve the system of the commanded flow; a valve stuck open or carbon holding it ajar lets too much through. On engines with an EGR cooler, a fouled or failing cooler degrades performance too. Beyond carbon, a vacuum or electrical control problem on the valve, a leaking or blocked EGR tube, a faulty position or temperature sensor giving the PCM bad feedback, and intake or exhaust leaks that skew the readings can all set the code. Because the complaint is performance, diagnosis works through the valve's operation, the passages, the cooler, and the feedback sensors.
For the driver, P2413 often appears as a check engine light with modest drivability effects: possible rough idle, light hesitation or pinging under load, slightly reduced performance, and a failed emissions test, since EGR is an emissions function. Symptoms vary with whether flow is too low or too high. The car is generally driveable, but an EGR stuck open can cause noticeable rough running, and an emissions failure blocks inspection. Diagnosis inspects and tests the EGR valve, cleans or checks the passages and cooler for carbon, and verifies the position/temperature feedback before replacing the valve.
Common causes
- Carbon buildup clogging EGR passages or ports
- EGR valve sticking closed or open from soot
- Fouled or failing EGR cooler degrading flow
- Vacuum or electrical control fault on the EGR valve
- Leaking or blocked EGR tube
- Faulty EGR position or temperature sensor giving bad feedback
- Intake or exhaust leak skewing the PCM's flow assessment
Symptoms
- Check engine light with P2413 stored
- Rough idle or light hesitation
- Pinging or knock under load in some cases
- Slightly reduced performance
- Failed emissions test
- Symptoms varying with too-little vs. too-much EGR flow
Diagnostic steps
- 1.Scan live data and compare commanded EGR position/flow against actual to confirm the performance shortfall.
- 2.Inspect and actuate the EGR valve, checking for sticking and carbon fouling.
- 3.Clean or inspect the EGR passages and ports for carbon restriction.
- 4.On engines with an EGR cooler, check it for fouling or failure.
- 5.Verify the EGR position and temperature sensors are reading correctly.
- 6.Clean or replace the EGR valve and clear the passages, then confirm flow tracks the command.
Repair cost
$100 – $800
Cleaning the EGR valve and passages can be inexpensive — sometimes just the cost of cleaner and labor, $100-$250. An EGR valve replacement typically runs $250-$500 with labor. If an EGR cooler is fouled or failed, replacement is more involved and costlier. Because carbon is the usual cause, cleaning is a reasonable first step before replacing the valve, though heavily carboned systems often need the valve replaced.
Estimate your repair
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Open the Repair Cost Estimator with egr valve replacement preselected. Adjust labor rate and vehicle category to fit your situation.
DIY vs shop
This is an intermediate DIY job. It usually involves diagnostic steps, specialty parts, and some careful work in tight spaces. If you have the tools and a service manual or trustworthy video for your specific vehicle, it is achievable in a weekend. Otherwise, a competent independent shop will be faster.