Back to 2018 Infiniti Q70L

2018 INFINITI Q70L

5.6L V8RWDAUTOMATICgas
1 active safety recall on this vehicle — view recalls
Repairs0Labor499Torque2473Fluid7DTC925Battery0Maintenance0Recalls1
P1490low severityPowertrain

Vacuum Cut Valve Bypass Valve Circuit

on 2018 Infiniti Q70L 5.6L V8 · RWD

What this code means

Electrical fault in vacuum cut valve bypass valve circuit.

Symptoms

  • CEL
  • EVAP issues
  • Failed emissions

Common causes

  • Open/short in wiring
  • Faulty solenoid
  • Corroded connector
  • Faulty ECM

Diagnostic steps

  1. Test circuit resistance
  2. Inspect wiring
  3. Check connector
  4. Test ECM output

Repair notes

Repair wiring or replace valve.

Other Powertrain codes on this vehicle

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