The P0102 password tells friend there’s a difficulty with the mass air flow sensor in her engine. This component is vital to keeping the correct air come fuel proportion in your engine. When the P0102 trouble password isn’t major on that is own, ignoring it can lead to more engine damage.

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Activation of the P0102 OBD2 password doesn’t constantly mean your mass air flow sensor is failing. There room other contents that may be bring about the problem. Review on listed below to discover the correct actions for diagnosing and repairing this issue.

P0102 code definition

P0102 code an interpretation (generic): Mass or volume air circulation circuit low

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P0102 Ford password definition: Mass or volume air flow circuit low input

P0102 GM code definition: Mass or volume air flow circuit short input

P0102 Hyundai code definition: Mass or volume air flow circuit low input

P0102 Nissan password definition: Mass or volume air circulation circuit short input

P0102 Subaru password definition: Mass or volume air flow circuit low input

P0102 Toyota password definition: Mass or volume air flow circuit low input

If you desire to learn about the P0102 OBD2 code, this is the ideal place

What walk P0102 mean?

The lot of air that comes right into the engine is measure up by the massive air flow (MAF) sensor. This data is offered to preserve the correct air-to-fuel mixture, i beg your pardon is essential for making certain the cylinders fire correctly.

The P0102 code is a basic code pertained to the MAF sensor. It shows the voltage output to the engine manage module (ECM) or powertrain control module (PCM) is as well low. This means the sensor no performing in ~ its normal parameters, and the data that generates might be faulty.

You can find the MAF sensor downstream that the waiting filter top top the engine air intake system. To gain a more specific location, examine your vehicle’s manual. Your hand-operated should also tell you whether your MAF sensor consists of an waiting temperature sensor, which part vehicles usage to give much more complete data.

It’s common to see various other diagnostic problem codes in addition to P0102. These incorporate P0101, P0103, and P0104, all of which are additionally related to the MAF sensor.

What space the symptoms of the P0102 code?

It’s likely your engine will run generally most that the time, through erratic or sporadic drivability issues. The most common symptoms the the P0102 password include:

Black exhilaration in the exhaust,Inconsistent or unstable idle,Reduced fuel consumption, causing air/fuel mixture that’s as well lean,Reduced engine power,Hard starts and stalls.
The P0102 password tells friend there’s a difficulty with the fixed air flow sensor

What are the causes of P0102?

Dirty MAF sensor or air filter,Failed or disconnected wiring approximately the MAF sensor electric harness,Damage or corrosion on MAF terminals,Leaks in the waiting intake or exhaust system,Clogged passages or hoses in the air intake or exhaust system,Faulty electrical system (rare.)

How significant is the P0102 code?

The P0102 password is of relatively low severity. In some cases, friend won’t even experience any kind of drivability symptoms. Those that do occur are normally mild and don’t posture a danger to the driver or the engine. When you must fix the difficulty as quickly as possible, you have the right to safely journey your automobile until friend do.

How to diagnose the P0102 code

Tools you will do it need:

An OBD2 scan tool have the right to be provided to diagnose the P0102 code
MAF sensor cleaner


Check if over there are any type of technical service bulletins easily accessible for your vehicle’s make and also model. There may be a known problem for your car that deserve to save girlfriend the diagnostic work.Check the wiring and connections about the MAF sensor. Replace any type of that space frayed or damaged, then make certain they’re securely fastened and also not installed too carefully to various other engine components.Inspect the hoses of the waiting intake system for leaks. Pay distinct attention come the ends, and also feel along any kind of hidden spots because that wear or damage.Check the wait filter. Change it if it’s clogged or dirty.Test if her MAF sensor is operating. Allow your car sit overnight, then start it and also carefully disconnect the electric harness. The engine have to shut off. If the doesn’t, your MAF sensor is faulty.Remove the MAF sensor and also visually inspect it because that dirt or corrosion. If you view any, clean it v a spray-on MAF sensor cleaner, closely re-install it, and also ensure all relationships are secure.Use a digital multimeter to test the wiring roughly the MAF circuit. Replace any that don’t check out the exactly voltage stated in her vehicle’s manual.

Common mistakes to avoid while diagnosing the P0102 code

Many civilization assume the MAF sensor has failed there is no taking the moment to inspect it for buildup and corrosion. Also if you’ve identified the sensor as the problem, it may simply need to be cleaned, not replaced.

If you do should replace her MAF sensor, make certain you usage an original devices (OEM) component. Aftermarket assets may not be compatible v your system, which have the right to lead to further problems. 

What must you execute to deal with the code P0102?

After each step of the repair, clear the codes utilizing an OBD2 scan tool and also test drive your car to watch if lock recurs. This will prevent you native making unnecessary repairs.

Replace any damaged or faulty wires uncovered during her diagnosis.Replace the MAF sensor if it still falls short the diagnosis after cleaning.Small feet in her air input system may not be visible to the nude eye, however could still reason a vacuum leak. A smoke check can aid you uncover these covert leaks. You deserve to rent smoke makers from many auto components stores. Command a test utilizing the “visible smoke” setting, climate replace any leaking components.If P0102 come back, girlfriend may have actually a an ext serious electrical problem. Take it your automobile to a mechanic for more diagnosis.

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How to deal with the P0102 trouble code

Tips to prevent P0102 in the future

Faulty wiring is the number one culprit as soon as it involves the P0102 code. Make sure to keep all wires far from contents that could damage them, specifically parts that reach high temperatures. You can likewise treat her engine through anti-corrosion link to aid stave turn off damage.