Obdaryn

P2083Exhaust Gas Temperature Sensor Circuit Intermittent (Bank 2 Sensor 1)

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
How the car detects it
P2083 reports an unsteady signal from exhaust temperature sensor 1 on bank 2: the value changes by more than the exhaust can physically manage between two readings, or briefly drops out. Only one maker documents it publicly. Infiniti bulletin ITB17-050 lists P2083 with P0544–P0549 and P2080–P2082 for Infiniti's Q50 (model years 2016–2017) and Q60 (2017) with the 3.0 L VR30DDTT twin-turbo V6, which has one sensor per bank, and prescribes an ECM reprogram. Ford's 2014 petrol code list includes P2083 with a lamp marker. No threshold is published for bank 2; GM's bank 1 counterpart P2081 shows the usual approach of counting fast steps in a window of samples. Before replacing parts, wiggle-test the connector and lead while watching live data. A plausible but wrong steady value would be P2082.
What you may notice
  • Engine warning lamp on
  • Bank 2 exhaust temperature flickering in live data
Likely causes
  • LikelyIntermittent contact in the bank 2 sensor connector
  • PossibleECM software (Infiniti VR30DDTT bulletin)
  • PossibleLead damaged by turbocharger or exhaust heat
Inspection (ITP)
Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
Repair
Medium · Usually a job for a workshop.Typical cost: €0 – €350

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.