Feedback

P00BD OBD Error Code: Problem & Solutions

OBD Code P00BD - Mass or Volume Air Flow 'A' Circuit Range/Performance - Air Flow Too High

<<See All OBD Codes

Oftentimes, Engine Warning Light turns up almost immediately it senses the OBD code error. This directly impacts the engine performance as it struggles with power and acceleration as well as failed fuel system causing increased consumption of fuel by the engine.


OBD-II Code Decreased engine performance is defined as a Mass or Volume Air Flow "A" Circuit Range/Performance – Air Flow Too High

Learn More About OBD Code P00BD

The powertrain control module (PCM) uses that reading along with other sensor parameters to ensure proper fuel delivery at any given time for optimum power and fuel efficiency. Basically, this P00BD diagnostic trouble code (DTC) means that there is a problem with the Mass or Volume Air Flow (MAF) "A" sensor circuit. The PCM detects that the actual MAF sensor frequency signal is not within a predetermined expected range of the calculated MAF value, and in this case, it’s determined that the air flow is too high. Note the "A" part of this code description. That letter denotes either part of the sensor or circuit, or even a single MAF sensor if the vehicle has more than one.


What causes problem with the Mass Air Flow Sensor?


  • Damaged MAF (Mass Air Flow) sensor
  • Leaks in the Air Intake System
  • Open, shorted, or poor connection of the electrical wirings to the sensor and circuit.
  • PCM being faulty and needs reprogramming
  • Clogged/broken intake/inlet pipe

Replace/Repair These Parts To Fix OBD Code P00BD

  1. Engine Control Module - OBD Error Code P00BD can also be due to faulty ECMs which can cause engine stalling or not starting. It’s better to get the faulty electricals replaced as soon as possible.
  2. Powertrain Control Module - Any problem in the PCM can flash wrong OBD code and also not detect the problem at all. Find all the Powertrain related parts with us.
  3. Diagnostic Tool - Choose from our wide variety of diagnostic tools to detect and correct the OBD code error.
  4. Auto Switches & Sensors - Common causes behind that OBD Code P00BD error can be defective switches or faulty sensors. Replace damaged components now.
  5. Air Temperature Sensor - Common signs of a bad sensor include poor fuel economy, black smoke coming from engine, engine overheating, and Check Engine Light On. Replace faulty sensors now!
  6. Air Intake Kits - It is very important to check on the air intake system to maintain the proper air to fuel ratio and enable proper functioning of the engine. Buy quality air intake kits from us.
  7. Mass Air Flow Sensor - A faulty mass airflow sensor will cause problems similar to when your vehicle has low fuel pressure from a faulty fuel pump. Thus, replace damaged/faulty MAF sensor today!

Symptoms Of OBD Error Code P00BD

Symptoms of OBD code P00BD are as follows:


Common Symptoms


  • Check Engine Light turning on
  • Engine running rough
  • Black smoke coming from engine
  • Engine not starting and stalling
  • Improper throttle response and acceleration
  • Increased fuel consumption

How To Correct P00BD Mass or Volume Air Flow "A" Circuit Range/Performance - Air Flow Too High

The main components to look for error and correct the OBD error are following;


  • Problematic Intake Manifold Gasket
  • Damaged Mass Airflow Sensor
  • Dirty/faulty Air Filter


Find best replacement parts and performance parts for your vehicle. We have parts for all make and model be it Mazda, BMW, Audi, etc.; and from best brands like Bosch, Denso, Remy and more. Visit us now!

Easy Diagnosis Of Engine Error OBD Code P00BD

The first step is to check for Technical Service Bulletins (TSBs) that apply to your year/make/model/engine, and then do a visual inspection of the wiring and system components.


  • Inspect all MAF sensor wiring and connectors to make sure they are intact, not frayed, broken, routed too close to ignition wires/coils, relays, motors, etc.
  • Check for any obvious air leaks in the air intake system
  • Inspect the MAF sensor wires or film to see contaminations such as dirt, dust, oil, etc.
  • Carefully clean the MAF and air intake mesh.
  • Loss of vacuum to the MAP sensor can trigger this DTC
  • A low minimum air rate through the sensor bore may cause this DTC to set at idle or during deceleration. Inspect for any vacuum leaks downstream of the MAF sensor.
  • Monitor real-time sensor values from the MAF sensor, O2 sensors, etc. using a scan tool.
  • The barometric pressure (BARO) that is used in order to calculate the predicted MAF value is initially based on the MAP sensor at key ON.
  • A high resistance on the ground circuit of the MAP sensor can cause this DTC to set.
  • Do an exhaust back pressure test to determine if the catalytic converter may be clogged


Common mistakes when diagnosing the P00BD code


By far, the most common cause of a P00BD being stored is a disconnected MAF sensor. When the air filter is checked or replaced, the MAF sensor is often left disconnected. If your vehicle has recently been service, and a code P00BD is suddenly stored, suspect that the MAF sensor has simply been left unplugged.


Some of the common mistakes done while changing diagnosing the OBD code P00BD are:


  • Intake manifold leak
  • Mass Air Flow (MAF) sensor failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue.

Other Diagnostic Codes Related To OBD Code P00BD

P00BC - Mass or Volume Air Flow "A" Circuit Range/Performance - Air Flow Too Low

P00BE - Mass or Volume Air Flow "B" Circuit Range/Performance - Air Flow Too Low

P00BF - Mass or Volume Air Flow "B" Circuit Range/Performance - Air Flow Too High