Check P0172 Fault Code
When you check engine light came on code P0172 the reason should be Fuel injection system does not operate properly.. However your vehicle's manufacturer may have a different definition for the P0172 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
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P0172 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set. |
P0172 Possible Fix :
Small but critical, a spark plug makes the car move. Its function is to ignite the compressed fuel in the engine. A worn spark plug will cause a weak spark. It may even prevent ignition entirely, or cause ignition at the wrong time. A misfire will affect engine power and fuel economy and cause massive amounts of potential damage.
P0172 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0172 OBD-II Trouble Code With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygeReason For P0172 CodeThe reason of P0172 OBD-II Fault Code Check is P0172 System Too Rich Bank 1. |
P0172 Solution:
Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly. If the problem is not enough fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel pressure regulator. The lean fuel mix error may be accompanied by rough idling, engine misfires, hesitation during acceleration and overall poor engine performance.
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What does fault code P0172 mean ?
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How to Clear P0172 Trouble Code
An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.