Back to 2017 Toyota Avalon

2017 TOYOTA AVALON

3.5L V6FWDAUTOMATICgas
2 active safety recalls on this vehicle — view recalls
Repairs0Labor473Torque2476Fluid6DTC938Battery1Maintenance0Recalls2
P1130moderate severityPowertrain

Air/Fuel Sensor Circuit Range Bank 1 Sensor 1

on 2017 Toyota Avalon 3.5L V6 · FWD

What this code means

The A/F ratio sensor on Bank 1 Sensor 1 is not operating within expected range.

Symptoms

  • CEL
  • Poor fuel economy
  • Rough idle
  • Hesitation

Common causes

  • Failing A/F sensor
  • Exhaust leak
  • Contaminated sensor
  • Wiring issue

Diagnostic steps

  1. Test sensor output
  2. Check for exhaust leaks
  3. Inspect wiring
  4. Monitor fuel trims

Repair notes

Replace A/F ratio sensor.

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 →