P2407 on Volkswagen: How to Diagnose & Fix
Evaporative Emission System Leak Detection Pump Sense Circuit Intermittent/Erratic
1 Volkswagen model · 1 documented issue · $30-$500 repair
P2407 on Volkswagen by model: symptoms, diagnosis and fix
The EVAP system on MQB-platform Golf R (MK7/MK7.5, with some MK8 cases) frequently throws evaporative-emissions leak faults. The most common culprit is the N80 purge valve failing to seal, but the leak-detection pump, carbon (charcoal) canister breakdown, and saturated canister from overfilling the tank also trigger codes. Symptoms are a check engine light with small- or large-leak codes, occasional rough idle or hesitation just after start, and sometimes a fuel smell. Often surfaces around emissions/inspection (relevant for EU periodic technical inspection).
Common Symptoms
- Check engine light (EVAP leak)
- Rough idle / hesitation after start
- Fuel smell
- Failed emissions/EVAP readiness monitor
How to Fix
Read codes and smoke-test the EVAP system. Replace the N80 purge valve (inexpensive, ~USD 20-50) as the most common fix; also inspect the gas cap seal, charcoal canister and leak-detection pump. Advise owners not to overfill the tank past the first pump click-off, which saturates and damages the canister. Clear codes and run a drive cycle to confirm the EVAP monitor passes.
What you need to diagnose it
The repair instructions explicitly call for reading stored codes. Use a scanner that can read the named code families before choosing a repair.The recommended scanner supports these code families; confirm your exact year, model and module coverage before buying.
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Read & clear engine (P) codes
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Reading and clearing the code is DIY work. Module replacement or reprogramming is not — most modules are VIN-programmed, so a new one does nothing until a shop codes it to your car. Check for an open recall or service bulletin before buying anything.
Sources for this issue (3)
P2407 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P2407 mean on a Volkswagen?
P2407 stands for "Evaporative Emission System Leak Detection Pump Sense Circuit Intermittent/Erratic." This code indicates the Engine Control Module (ECM) has detected an intermittent or erratic signal on the evaporative emission (EVAP) system leak detection pump sense circuit. The leak detection pump is used to pressurize the EVAP system to check for fuel vapor leaks, and an unstable or inconsistent reading from its sense circuit triggers this fault. It is an emissions/monitoring issue rather than a drivability problem. On Volkswagen it is documented across 1 model: Golf R.
What are the most common causes of P2407?
The most common causes of P2407 are: Corroded, loose, or damaged electrical connector at the EVAP leak detection pump, Frayed, chafed, or intermittently shorting wiring in the leak detection pump sense circuit, Faulty EVAP leak detection pump (internal sensor or motor fault), Poor ground or intermittent open in the circuit harness, Failed or failing ECM/PCM (less common). The specific cause varies by vehicle.
How much does it cost to fix P2407 on a Volkswagen?
Published repair estimates on Volkswagen range from $30 to $500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P2407 on a different make?
View P2407 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.