P2404
System
Powertrain (EVAP)
Scanner som krävs
Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

EVAP System Leak Detection Pump Sense Circuit Range/Performance

Understand P2404, common causes, and the right FOXWELL scanner to diagnose it.

Leak detection pump feedback signal out of range during EVAP integrity test.

Vanliga symptom

  • Check engine light
  • EVAP large leak codes may follow

Typiska orsaker

  • Failed LDP
  • Restricted EVAP hose
  • FTP sensor fault

Vilken scanner behöver du?

Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade FOXWELL-scannrar

Vanliga frågor

Can I diagnose P2404 with a basic code reader?
P2404 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with P2404?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.