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2018 INFINITI Q70L

5.6L V8•RWD•AUTOMATIC•gas
1 active safety recall on this vehicle — view recalls
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Repairs0Labor564Torque2385Fluid7DTC925Battery0Maintenance0Recalls1
P1701moderate severityPowertrain

Fuel Trim A/T Related

on 2018 Infiniti Q70L 5.6L V8 · RWD

What this code means

Fuel trim signal issue between engine and transmission control systems.

Symptoms

  • CEL
  • Poor shift quality
  • Engine flare during shifts
  • Rough transitions

Common causes

  • Communication fault
  • Fuel trim out of range
  • Faulty sensor data
  • Faulty ECM or TCM

Diagnostic steps

  1. Monitor fuel trims
  2. Test communication
  3. Check sensors
  4. Compare ECM/TCM data

Repair notes

Repair communication or sensor issue.

Other Powertrain codes on this vehicle

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