P2AE3

Intake Air O2 Sensor Pumping Current Circuit Open Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Increased fuel consumption
Unstable engine operation at idle
Reduced engine power
Check Engine Light Illuminates
Possible misfires

Causes

Broken or damaged sensor wiring harness
Oxidation of sensor connector contacts
Oxygen sensor malfunction
Problems with the engine control unit
Short circuit in the circuit

How to Fix

Visual inspection of sensor wiring and connectors
Checking circuit continuity with a multimeter
Replacing the oxygen sensor if necessary
Cleaning the connector contacts
Engine control unit diagnostics

Related codes

P2AE4 P2AE2 P2AE1