How to solve trouble code p0113?
4 Answers
There are two solutions for trouble code p0113: 1. Clean the throttle body; 2. Replace the intake air temperature sensor. The intake air temperature sensor is a negative temperature coefficient thermistor. When the temperature rises, the resistance value decreases, and when the temperature drops, the resistance value increases. The change in resistance in the circuit causes a voltage change, thereby generating different voltage signals to complete the automatic operation of the control system. When the engine is cold, the signal from the intake air temperature sensor is basically the same as that from the engine coolant temperature sensor; when the engine is hot, its signal voltage is about 2 to 3 times that of the coolant temperature sensor.
As a veteran mechanic with over a decade of experience, let me tell you that the P0113 trouble code generally indicates an excessively high voltage from the intake air temperature sensor - in simple terms, it means the sensor is reporting an error. First, don't panic. This is a pretty common issue. In most cases I've encountered, it's either a faulty sensor or poor wiring contact. You can pop the hood and locate that small sensor near the intake, usually close to the air filter. Unplug the connector first to check for rust or looseness. If you have a multimeter, test whether the voltage is normal - it should typically be around 0-5 volts. If the voltage is abnormal, the sensor has probably aged and needs replacement. A new one only costs about 100-200 yuan. However, be aware that if the sensor fails, the engine might misjudge temperatures, leading to increased fuel consumption or starting difficulties. If you're not familiar with circuits, it's best to take it to a repair shop and have them use a diagnostic tool to read the specific code and thoroughly check whether the ECU module is damaged. Don't delay fixing it - if it affects combustion efficiency, you'll lose big.
I just replaced this sensor, it's a pretty simple thing. P0113 mainly indicates excessively high intake air temperature, and I think it really affects daily driving. Last time this light came on in my car, I immediately checked and found the sensor was covered in oil residue. A quick spray with cleaner and plugging it back in fixed it. If it's a real fault, either the sensor connector is loose or the whole component is dead. I suggest you look up your car's manual online to find the corresponding location and take it out to check, don't waste money at the dealership. If you need to replace the part, the cost is usually not high—buying an OEM part on Taobao is just around a hundred bucks, and installing it yourself takes just a few minutes. But be careful not to damage other wires when connecting, as it's easy to cause a short circuit. After driving for so long, I've found that cleaning these components during maintenance can extend their lifespan and save hassle.
Don't ignore this warning light. With years of driving experience, I know P0113 is crucial for engine health. Inaccurate intake air temperature sensor readings can cause improper air-fuel mixture ratios, potentially leading to severe engine vibration and increased fuel consumption. The solution is straightforward: first, turn off and park the vehicle, then check if the sensor connector is corroded or disconnected (commonly found near the intake pipe). Wipe away dust or grease with a cloth and restart the engine. If the light persists, it likely requires a new sensor or checking the wiring/fuses. I personally prefer trusted local shops for inspections—cost-effective and efficient. Remember, delaying repairs may trigger chain reactions of faults. Safety first—investing time now saves big money later.
