Powertrain, generic (extended)

P2083 Exhaust Gas Temperature Sensor Circuit Intermittent (Bank 2 Sensor 1)

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

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.

Likely causes

Intermittent contact in the bank 2 sensor connector
ECM software (Infiniti VR30DDTT bulletin)
Lead damaged by turbocharger or exhaust heat

Symptoms

  • Engine warning lamp on
  • Bank 2 exhaust temperature flickering in live data

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–350
Time0.5–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

exhaust gas temperature sensoregt harness

Related codes

P2081P2082P2087P0547P0548P0549

References: static.nhtsa.gov, performanceparts.ford.com, gsi.ext.gm.com.