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发帖数: 133 | 1 code是P0122，查了一下，如下信息，问一下修起来麻烦吗？
Auto Systems and Repair
OBD II Code P0122
Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input
Our emissions expert has put together the following information about the
P0122 fault code. We have also included diagnostic procedures you can take
to your repair shop if the mechanic is having difficulty analyzing the code.
OBD II Fault Code
OBD II P0122
Fault Code Definition
Code P0122 is triggered when the voltage output from the Throttle/Pedal
Position Sensor/Switch to the PCM is too low.
The Throttle Position Sensor/Switch is located on the Throttle Body of the
Intake Manifold and the Pedal Position Sensor/Switch is located on the
Accelerator Pedal. These sensors provide precise input from the driver's
foot in terms of how much power is needed—and how urgently—from the engine.
As the Throttle Position Sensor is rotated from its base resting position to
full acceleration, it sends a increasing voltage signal to the Powertrain
Control Module (PCM). This decreasing or increasing voltage signal is used
by the PCM to manage the Air Fuel Ratio and Spark Timing of the engine as
well as other emissions system components.
Symptoms
Check Engine Light will illuminate
In many cases, no abnormal symptoms may be noticed
In some cases, the engine may be hard starting
In some cases, the engine may hesitate during acceleration
Common Problems That Trigger the P0122 Code
Defective Throttle Position Sensor or Switch
Torn or jammed floor mats
Faulty or corroded Throttle/Pedal Position Sensor/Switch wiring or
connections
Common Misdiagnoses
Throttle or Pedal Position Sensor is replaced when the real problem is a
poor connection or chafed wiring
Pedal Position Sensor is replaced when the real problem is torn or
damaged floor mats | t*****g
发帖数: 7455 | 2 sensor输入low，可能脏了或者坏了或者连接不好，卡住了，换个sensor的问题 | x*****x
发帖数: 133 | |
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