P0046 Engine Trouble Code
Meaning of P0046 engine trouble code is : When the check engine light comes P0046 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.
P0046 Possible Solution:
The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.
P0046 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Intake Valve Control Solenoid Circuit Low||Ambient Air Temperature Sensor Circuit Low||Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)||Ignition Coil A Primary/Secondary Circuit Malfunction|
The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.
P0046 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0046 OBD-II Trouble Code Turbocharger/Supercharger Boost Control A Circuit Range/Performance is the generic definition for the P0046. P0046 code.
Reason For P0046 CodeThe reason of P0046 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.
P0046 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.