P2AE6

Intake Air O2 Sensor Negative Current Control Circuit Open Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Increased fuel consumption
Reduced engine power
Unstable idling
Increased emissions of harmful substances

Causes

Broken wires in the sensor harness
Malfunction of the oxygen sensor itself
Poor contact in the sensor connector
Damage to the control circuit in the engine control unit
Corroded contacts or terminals

How to Fix

Check the integrity of the sensor wiring harness
Inspect the sensor connector for damage
Check resistance and sensor signal
If necessary, replace the oxygen sensor
Check the control circuit in the ECU

Related codes

P2AE5 P2AE7 P2AEF