P0106 - OBD Trouble Code

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If you are struggling with issues like reduced power form the engine, increased fuel consumption, irregular throttle response and Check Engine Light on, there it might be due the OBD Error Code P0106.

OBD-II Code P0106 is defined as a Manifold Absolute Pressure Sensor/Barometric Pressure Circuit Range/Performance Problem

P0106 is the general OBD code indicating a problem with the MAP circuit having problem of incorrect voltage output range or an issue with engine performance. The MAP sensor is an integral part of the fuel injection system and provides signals to the Engine Control Unit (ECU) for smooth operation and good fuel economy along with proper performance and power.

The PCM also uses this information to ensure that the fuel-to-ratio level is always constant, controllable and acceptable to limitations fuel-to-air. If the voltages detected for these three sensors (triangulated) fail to correspond with the programmed parameters, even just one of the three sensors, for a specific period of time or specific engine revolutions, the trouble code P0106 will be registered.

What cause the problem of Manifold Absolute Pressure Sensor/Barometric Pressure Circuit Range/Performance?

• Damaged/faulty MAF sensor
• Faulty MAP sensor
• Faulty wirings and connectors of the sensors
• Obstruction in air flow
• Dirty Air Cleaner
• Defective Electronic Throttle Body
• Obstruction in hose from intake manifold to MAP sensor
• Vacuum leakage in the intake manifold, air induction system, or throttle body
• Damaged/Loose electrical connection related to the sensor and circuit
• Faulty/Damaged or improperly installed Throttle Position Sensor

1. Diagnostic Tools - You will need high grade diagnostic tools for correction of the OBD error code which is detected. Buy now to grab amazing deals.
2. Mass Air Flow Sensor - Wrong information sent by the sensor will affect the engine performance adversely. Thus, it is advisable to replace them in time.
3. Throttle Position Sensor - A bad TPS can cause loss of engine power along with engine stalling and deceleration during rough idles. Thus, replace it immediately.
4. Catalytic Converter - Sometimes catalytic converters can overheat and become faulty causing increase in emissions. Replace your old catalytic converter now!
5. Manifold Absolute Pressure Sensor - Faulty MAP sensor can cause reduced fuel efficiency, power and acceleration, and increased emission from the exhaust. Thus, replace faulty sensors now!
6. Intake Valve - Damaged intake valve may result in reduced fuel economy, lower engine performance, rough idles and engine misfires. Thus, replace damaged valves immediately.
7. EGR Valve & Parts - Problematic Exhaust Gas Recirculation System will not be able to properly regulate the flow of exhaust gas, causing increased pressure on engine and resulting in misfires, stalling and sometimes not starting. Thus, replace faulty EGR components immediately.
8. PCV Valve - Bad PCV valve may cause increased engine pressure, failed oil seals and gaskets, and engine oil leaks. Replace faulty valve now!
9. Throttle Body - Problematic throttle body causes poor engine performance, stalling, and broken electrical connections. Resolve this issue immediately.

It is important to notice the probable symptoms which can indicate towards the problem of OBD code P0106. Following are the common symptoms of OBD Code P0106 Error.

Common Symptoms

• Drastic reduction of fuel efficiency
• Lack or reduced engine performance
• Rough running engine and idle causing deceleration and vehicle being dead stop in severe cases
• Hesitation upon acceleration
• Check Engine Light On

• Mounting or installation adjustment of the mass air flow (MAF) sensor, manifold absolute pressure (MAP) sensor, or throttle position sensor (TPS)
• Repairing or replacing wiring and connections related to the sensors and the circuits
• Replacement of faulty EGR system and parts
• Replacement of faulty Catalytic Converter
• Checking for any vacuum leaks and repairing them immediately

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A qualified mechanics may need to conduct specific diagnostic steps, depending on the make and model of the vehicle. Also, mechanics uses other tools and testing equipment, such as the volt-ohmmeter, carburettor cleaner can, meter’s wire-piercing probe and an intake cleaner can.

• Check for damaged or broken wirings and connections in relation to the sensors and circuits.
• Check the air cleaner element and look for any signs of clamps or leaking in the pipe starting from the MAF to the Throttle body.
• Then, check the vacuum lines in intake manifold for any cracks, obstructions, or looseness, as these can cause vacuum loss.
• Detach every sensor and check the connector for signs of corrosion and bent pins that are pushed out.
• Inspect for leaky manifold in the intake and clean the carburettor using the carburettor cleaner. The engine RPM will change noticeably after a short shot of the carburettor cleaner over a leak.
• Check the throttle body for signs of coated coke (black greasy substance) and get it cleaned.
• Also check for any faults in the PCM and replace/reprogram it as necessary. Although this problem is rare but if all the other components are fine, then the check is necessary.

Common mistakes when diagnosing the P0106 code

Common mistakes when diagnosing the P0106 code include;

• Replacing fuel or ignition system parts
• Replacing one or more sensors without testing their functionality prior to the replacement.
• Not checking the wiring and connectors for damages
• Replacing PCM, without checking other components for errors