OBD Codes List

Diagnostic reference · P2EA5

P2EA5

Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 6

System
Powertrain control (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P2EA5 stands for Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 6. P2EA5 is a P code, so the fault sits in the engine, transmission and emissions systems. For P2EA5, work through the cause list below, cheapest checks first.

Where it lives

For P2EA5, start at the sensor the description names. The description of P2EA5 puts it on bank 1.

What to check first

For P2EA5, compare the reading on bank 1 against the other bank on the same scan tool, because a bank that reads differently from its twin is the fault.

Check these first

  • P2EA5: Faulty or contaminated sensor in the fuel/air metering circuit
  • P2EA5: Damaged or shorted wiring or connector for the affected circuit
  • P2EA5: Vacuum leak or intake system restriction
  • P2EA5: Failing fuel pump, injector, or fuel pressure regulator

What to do next

P2EA5 belongs to the powertrain control system. These are the general steps for P2EA5, and the exact cause on your vehicle can differ.

  1. P2EA5: Read freeze frame data and related codes with an OBD-II scanner
  2. P2EA5: Inspect the affected sensor wiring and connector for damage
  3. P2EA5: Compare live sensor readings (fuel trim, airflow, temperatures) to manufacturer specs
  4. P2EA5: Smoke test the intake system if lean or vacuum conditions are suspected
  5. P2EA5: Replace the failed component after confirming it with live data

Look up another code

Enter a full code or a symptom. Press / to search. How to read a code

Type a code above, or start from a symptom or a common code.

Updated

Generic SAE J2012 definition. Last updated 2026-08-30.