P2297 code definition

O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1

(May be seen with other oxygen sensor codes)

What the P2297 code means

P2297意味着氧气传感器（O2）在车辆下降时具有超出范围传感器性能，用于银行1传感器1.electronic control unit (ECU)detects the out of range performance and causes the P2297 code to be set. This causes the Check Engine Light to be illuminated on the dashboard.

With the check engine light comes a failsafe mode that is used to protect the vehicle from any further damage. Once the failsafe mode is enacted, it will remain until normal operation is found, or the code is repaired.

What causes the P2297 code?

• Exhaust leaks
• Failed oxygen sensor
• Open or short in the oxygen sensor wiring harness
• Poor electrical connection
• ECU failure

What are the symptoms of the P2297 code?

Likely symptoms are:

• Check Engine Lightvisible on the dashboard
• Lean engine condition
• Rich condition
• Lower than normal gas milage

How does a mechanic diagnose the P2297 code?

1. 检查存储在ECU中的任何代码，包括历史记录或待处理代码。

2. Notes all codes and the freeze frame data associated with each code for future use

3. Clears all the codes for a fresh start

4. Takes the vehicle on a road test to attempt to duplicate the symptoms

5. Performs a visual inspection will be to look for any obvious signs of failure and damage

6. Uses the scan tool to look at the live engine data and the oxygen sensor readings while the vehicle is operated (if the readings do not change as the throttle is operated, then a multimeter will be used to check for voltage at the oxygen sensor)

7. Checks the exhaust for any leaks present

8. 最后，检查ECU是否有任何故障（此测试将由制造商的测试程序完成）

Common mistakes when diagnosing the P2297 code

即使是最简单的故障代码，如果未执行分步诊断，则在诊断错误时很容易犯错。跳过或不完成任何步骤会导致错误并浪费时间和金钱。

How serious is the P2297 code?

The P2297 code should not prevent the vehicle from being driven to a safe location once the code is set. If the vehicle runs poorly, it should not be driven until it is repaired and working as designed again.

What repairs can fix the P2297 code?

• Replacing an oxygen sensor
• Repairing any exhaust leaks found
• Repaired or replacing wiring harness
• Repairing poor electrical connections
• Replacing the ECU

Additional comments for consideration regarding the P2297 code

Leaking exhaust can be a common cause of the P2297 code. Diagnosing exhaust leaks is usually quick and easy if you know what to look for. The first sign is a sooty black stain on the exhaust. This is a sign that unburned fuel is exhiting the exhaust before the catalytic converter. The other way to tell is that you can usually feel the air exiting the exhaust at the leak point.

需要P2297代码的帮助吗？

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle.Get a quote and book an appointment onlineor speak to a service advisor at 1-800-701-6230.

Check Engine Light

trouble codes

P2297