Intake Air Temperature Sensor 2 Circuit Range/Performance Bank 2
The P00A6 code indicates that the Intake Air Temperature (IAT) Sensor 2, located in Bank 2 of the engine, is reporting a reading outside the expected range or has a performance issue. This sensor measures the temperature of the incoming air to help the engine control module (ECM) adjust fuel delivery and ignition timing. A faulty sensor, wiring issues, or a restricted intake can cause this code.
1. Most Common Causes
- Faulty Intake Air Temperature Sensor 2
- Open or shorted wiring in the sensor circuit
- Poor electrical connection at the sensor connector
- Restricted or leaking intake air system
- Faulty engine control module (rare)
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Poor engine performance or hesitation
- Rough idle or stalling
- Decreased fuel economy
- Black smoke from exhaust (rich mixture)
3. Step-by-Step Diagnosis
Step 1: Scan for additional codes and note freeze frame data.
Step 2: Visually inspect the IAT sensor 2 connector and wiring for damage or corrosion.
Step 3: Compare IAT sensor 2 reading with IAT sensor 1 using a scan tool; values should be similar at cold start.
Step 4: Test the sensor resistance with a multimeter; compare to manufacturer specifications.
Step 5: Check for intake air leaks or restrictions downstream of the sensor.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is generally safe for short distances, but prolonged driving may cause poor performance, reduced fuel economy, and potential damage to the catalytic converter due to incorrect air-fuel mixture.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150, including parts (sensor $20-$60) and labor (0.5-1 hour at $80-$120 per hour).
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.