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

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.

Bank 2 is the side without cylinder 1, so it only exists on V or boxer engines.

Symptoms

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

Most likely causes

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

What to check, in order

Start with the simplest. You can tick off each step.

1. Read the soot load and differential pressure with a scanner
2. Gently move the wiring with the engine running and watch whether the reading changes.
3. Check the differential pressure sensor's hoses
4. Check the temperatures before and after the filter
5. Fix any fuel injection or EGR codes before regenerating
6. Perform a regeneration while driving or at a repair shop when the diagnosis allows it

Good to know

• Repair difficulty: medium
• It affects emissions.

What each character of P2083 means

• P: Powertrain: engine and transmission
• 2: Generic code: same on every make
• 0: Subsystem depends on the code range
• 83: Specific fault in that system

Frequently asked questions

Can I keep driving with code P2083?

If the light is on steadily, take a highway drive or go to a repair shop soon. If the car is in limp mode or the light is flashing, do not push the engine.

What causes code P2083?

The most common causes are: intermittent contact in the bank 2 sensor connector; eCM software (Infiniti VR30DDTT bulletin); lead damaged by turbocharger or exhaust heat.

Related codes

• P2081Exhaust Gas Temperature Sensor Circuit Intermittent (Bank 1 Sensor 1)
• P2082Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 2 Sensor 1)
• P2087Exhaust Gas Temperature Sensor Circuit Intermittent (Bank 2 Sensor 2)
• P0547Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 1
• P0548Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 1
• P0549Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 1

Sources

• static.nhtsa.gov: MC 10118687 9999
• performanceparts.ford.com: 2014 BOSS 302S OBDII Codes
• gsi.ext.gm.com: 18OBDG04 Engine Diagnostics

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.