P0227 Infiniti Code - Throttle Position Sensor 2 Circuit Low Input
Quick Answer
The P0227 Infiniti code indicates a problem with the Throttle Position Sensor 2 Circuit, specifically a low input signal. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Malfunctioning ECM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0227 Infiniti indicates Throttle Position Sensor 2 Circuit Low Input.
- Common causes
- Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Malfunctioning ECM.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0227 Infiniti Description
The P0227 Infiniti code indicates a problem with the Throttle Position Sensor 2 Circuit, specifically a low input signal. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic throttle control system, responsible for monitoring the position of the throttle valve and sending this information to the engine control module (ECM). The ECM uses this data to determine the appropriate air-fuel mixture for combustion, as well as the throttle opening angle for optimal engine performance.
Common Causes of P0227 Infiniti
- Faulty throttle position sensor
- Damaged wiring or connectors in the TPS circuit
- Malfunctioning ECM
- Mechanical issues with the throttle body
- Corrosion or contamination in the sensor connections
Symptoms of P0227 Infiniti
- Poor acceleration and throttle response
- Rough idling or stalling
- Decreased fuel efficiency
- Check Engine Light illuminated
- Limp mode activation (vehicle speed and power limited)
How to Fix P0227 Infiniti
- Perform a thorough diagnostic scan to retrieve the trouble code and identify the specific cause of the low input signal.
- Inspect the throttle position sensor, wiring, and connectors for any signs of damage or corrosion. Replace any faulty components as needed.
- Test the TPS circuit using a multimeter to ensure proper voltage readings within the specified range.
- Clear the trouble code from the ECM memory and perform a test drive to verify that the issue has been resolved.
- If the problem persists, further diagnosis may be required to address any underlying mechanical issues with the throttle body or ECM.
Cost to Fix P0227 Infiniti
The typical repair costs for addressing a P0227 Infiniti code can range from $100 to $300, depending on the specific cause of the issue and the cost of replacement parts. This estimate includes the price of a new throttle position sensor, wiring repairs, and labor charges. It's important to note that the actual cost may vary based on the location, vehicle make and model, and the rates of the auto repair shop. Additionally, diagnostic time and labor rates can impact the total cost, with rates typically ranging between $80 and $150 per hour. It is recommended to obtain quotes from local auto repair shops for a more accurate estimate.
When is the Code Detected?
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Information for Specific Infiniti Models
- P0227 2003 Infiniti G35 — Throttle Position Sensor 2 Circuit Low Input
Frequently Asked Questions about P0227 Infiniti Code
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