P00A3

Charge Air Cooler Temperature Sensor Circuit High Bank 2

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Unstable idling
Check Engine Light Illuminates
Possible misfires

Causes

Charge air cooler temperature sensor malfunction
Open or short circuit in wiring harness
Poor contact in sensor connectors
ECU problems (rare)

How to Fix

Check the integrity of the wiring harness and contacts
Measure the resistance of the temperature sensor
Check the voltage in the sensor circuit
Replace sensor if necessary
Clear error codes and check if P00A3 returns

Related codes

P00A1 P00A2 P00A4 P00A5