P2085 Fault Code

Exhaust Gas Temperature Sensor Circuit Intermittent Bank 1 Sensor 2

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2085 fault code indicates an intermittent issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 1, Sensor 2. This sensor plays a critical role in monitoring exhaust temperatures and helping to optimize engine performance and emissions. If the sensor readings fluctuate or the circuit becomes faulty, it can lead to poor engine management and increased emissions.

What are the symptoms of the P2085 code?

• Check Engine Light illuminated on the dashboard
• Poor engine performance or reduced fuel efficiency
• Increased emissions during vehicle operation
• Possible engine overheating due to incorrect temperature readings
• Failure during emissions testing

What causes the P2085 code?

• Faulty Exhaust Gas Temperature Sensor
• Damaged wiring or connectors in the EGT sensor circuit
• Issues with the Engine Control Module (ECM)
• Corrosion or rust in the connectors
• Electrical short or open circuit in the EGT sensor wiring

How to fix P2085?

• Inspect and repair or replace faulty EGT sensor
• Check and repair damaged wiring or connectors in the circuit
• Clear any corrosion or rust from connectors
• Ensure proper connections between sensor and ECM
• Reprogram or replace the ECM if necessary