Back to 2018 Infiniti Q70L

2018 INFINITI Q70L

5.6L V8RWDAUTOMATICgas
1 active safety recall on this vehicle — view recalls
Repairs0Labor499Torque2473Fluid7DTC925Battery0Maintenance0Recalls1
P1443low severityPowertrain

EVAP Canister Control Vacuum Switch Circuit

on 2018 Infiniti Q70L 5.6L V8 · RWD

What this code means

Fault in EVAP canister control vacuum switch for leak detection.

Symptoms

  • CEL
  • EVAP monitor incomplete
  • Failed emissions

Common causes

  • Faulty vacuum switch
  • Damaged wiring
  • EVAP leak
  • Faulty purge solenoid

Diagnostic steps

  1. Test vacuum switch
  2. Inspect wiring
  3. Smoke test EVAP
  4. Test purge solenoid

Repair notes

Replace vacuum switch or repair leak.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →