P0748 Engine Trouble Code
When you check engine light came on code P0748 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 P0748 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
When the check engine light comes P0748 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.
P0748 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Intake Valve Control Solenoid Circuit Low||Throttle/Pedal Position Sensor/Switch A Circuit Intermittent||Engine Shutoff Solenoid Malfunction||Timing Reference High Resolution Signal A Too Many Pulses|
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.
P0748 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0748 OBD-II Trouble Code The line pressure solenoid valve A regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM). P0748 code.
Reason For P0748 CodeThe reason of P0748 OBD-II Engine Trouble Code is Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.
Parts or components should not be replaced with reference to only a P0748 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.