View source for 16620/P0236/000566

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== 16620/P0236/000566 - Manifold Pressure / Boost Sensor (G31): Implausible Signal ==

==== Possible Symptoms ====
* Reduced engine performance
* Check Engine Light (MIL) illuminated
* Poor acceleration
* Boost pressure not building properly

==== Possible Causes ====
* Leaks or damage in boost hoses, pipes, or intercooler
* Loose or damaged hose clamps
* Electrical wiring issues (shorts, open circuits, poor connections)
* Faulty Manifold Pressure / Boost Sensor (G31)
* Faulty Charge Air Pressure Actuator (V465)

==== Possible Solutions ====
* Inspect Charge Air Pressure Actuator (V465) for proper operation
* Inspect all boost pipes, hoses, clamps, and the intercooler for leaks or damage
* Check wiring and connectors related to the G31 sensor
* Verify sensor readings using diagnostic tools and compare to expected values
* Check and replace the Boost Pressure Sensor (G31) if necessary

==== Special Notes ====
* When found on 2013 - 2014 NAR Volkswagen Tiguan, please see this Technical Bulletin
** TSB 97-14-03 (2037108)  https://static.nhtsa.gov/odi/tsbs/2014/MC-10120170-9999.pdf  NHTSA
* All 2008-2015 Vehicles with 2.0 TSI Engine (CCTA, CBFA) see this Tech Tip
** TT 21-10-02 https://static.nhtsa.gov/odi/tsbs/2015/MC-10122981-9999.pdf  NHTSA

* This fault triggers when the ECM detects a pressure difference over 75.0 mBar between the boost, manifold, or barometric sensors.


[[Category:Fault Codes]]