Audi P142600: EVAP Purge Valve N80 Open Circuit
Audi P142600 (same fault as P1426 / 17834 / 005158) means the ECU has detected an open circuit to the EVAP Purge Valve N80, the solenoid that pulls fuel vapour from the charcoal canister into the intake. Most common causes are a failed N80 valve or damaged wiring and connector at the valve, with a faulty fuel pump relay J17 less common.
Quick facts
- System
- Emissions / EVAP System
- Severity
- Low
- Can you still drive?
- Yes, safe to drive
- Applies to
- VW Group petrol engines fitted with an EVAP purge valve N80. The sources found do not tie the code to one platform or generation. The 6-digit rendering is what current VAG scan ...
Also shown by some scanners as: P1426, P1426 00, 17834, 005158
Symptoms
- Check engine light on, the only symptom Ross-Tech lists for this code
- No obvious change in how the car drives, since an open circuit usually leaves the valve shut
- Fails an emissions or OBD readiness check
- EVAP readiness monitor stays not ready, which can block other inspections
- Possible slight drop in fuel economy over time as vapour is never purged
Common causes, most likely first
- 1
EVAP purge valve N80 failed internally with an open winding
Most common cause
- 2
Damaged, corroded or unseated wiring and connector at the N80 valve
Usually the second most common cause
- 3
Fuel pump relay J17 faulty
Listed by Ross-Tech because this relay feeds the valve
- 4
ECU output driver fault
Rare, only considered after the valve and wiring are cleared
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Frequently asked questions
Can I still drive with this code?
Yes, it is safe to keep driving normally. This is an emissions circuit, not a running, braking or safety system, and an open circuit generally leaves the valve closed. It will keep the check engine light on and block an emissions pass, and it can hide other faults by keeping the readiness monitor incomplete, so it should be fixed before any inspection.
Does this always mean I need a new EVAP purge valve N80?
Not always. The valve itself is the most common cause, but damaged wiring or a connector issue at the valve is also common and cheaper to fix, and a faulty fuel pump relay J17 is possible too. A proper diagnostic read is needed to confirm which one applies before buying parts.
How do I fix it, what parts are needed?
Start with a proper diagnostic read to confirm the fault is still active, then check the wiring and connector at the N80 valve. If the wiring is fine, the EVAP purge valve N80 itself usually needs replacing. If both check out, the fuel pump relay J17 should be tested. WhatsApp us the code and car model for stock and today's price.
Which Audi models does this code apply to?
This applies broadly to VW Group petrol engines fitted with the EVAP purge valve N80. It is not tied to one specific platform or generation in the available documentation, and the 6-digit P142600 form is simply how newer VAG scan tools display the same fault as the older P1426 / 17834 / 005158 codes.