What Does P0173 Mean? The PCM has detected a problem with its ability to control fuel/air mixture when necessary, or received a fuel trim request which exceeds its limitations for a particular engine. Fuel trim malfunctions are rarely exhibited in domestic and Japanese vehicles but are more common in European vehicles. Bank 2 denotes the engine bank that contains the number two cylinder. Refer to the manufacturer’s service manual (or equivalent) for the location of the number two cylinder. engine code P0173P0173 fixobd P0173dtc P0173obd code P0173obd2 P0173P0173 car codediagnostic code P0173car code P0173check engine code P0173fehlercode P0173P0173 fiatcodigo P0173codigo falla P0173P0173 kody b??dówcodigo de falla P0173 What are the common causes of P0173 ? Some aftermarket accessories and performance modifications A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area. Defective ECU strategies or components will prevent proper regeneration What are the symptoms of P0173 ? Check Engine Light will illuminate In many cases, no abnormal symptoms may be noticed In some cases, the vehicle may get poor fuel mileage In some cases, the engine may hesitate during acceleration How do you troubleshoot P0173 ? Like the all engines, the car engine system employs specially developed hydraulic lifters (known as switching roller followers) for the P0173 code intake and exhaust valves. The lifters can be collapsed by disengaging an internal locking pin. The locking pin is disengaged using solenoids to alter oil pressure fed into the lifter. Searches related to P0173 - Fuel Trim Malfunction Bank 2 p0173 mercedes p0173 mitsubishi montero fuel trim malfunction bank 1 p0173 bmw e46 p0173 ford p0173 hyundai p0173 e36 p0170 and p0173
