Check P0157 Fault Code
When you check engine light came on code P0157 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0157 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
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Parts or components should not be replaced with reference to only a P0157 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. |
P0157 Possible Fix :
There are a number of reasons which can cause a car engine not to start, the most common, of course, being a dead battery. Pay special attention to the noise it makes when you turn the key. Is the car completely silent? If so, there may be a problem with your battery terminal cable connections. Does your car crank over but not start? Then it may be your spark plugs or fuel supply to your engine. In any case, if you're out on the road, try jumpstarting your car then investigating the cause further when you're safely back at home.
P0157 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0157 OBD-II Trouble Code The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio)Reason For P0157 CodeThe reason of P0157 OBD-II Fault Code Check is P0157 O2 Sensor Circuit Low Voltage Bank 2 Sensor 2. |
P0157 Solution:
Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.
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What does fault code P0157 mean ?
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How to Clear P0157 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.