P0109 Engine Trouble Code
When you check engine light came on code P0109 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 P0109 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
When the check engine light comes P0109 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.
P0109 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Intake Valve Control Solenoid Circuit Low||Engine Oil Temperature Sensor Malfunction||Cylinder 10 Contribution/balance Fault||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.
P0109 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0109 OBD-II Trouble Code The Manifold Absolute Pressure ( P0109 code.
Reason For P0109 CodeThe reason of P0109 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.
P0109 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.