B0402 Engine Trouble Code
Meaning of B0402 engine trouble code is a kind of body trouble code and when the check engine light comes B0402 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.
B0402 Fault Symptoms :
If one of these reasons for B0402 code is occuring now you should check B0402 repair processes.
Now don't ask yourself; What should you do with B0402 code ?
The solution is here :
B0402 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.
B0402 Code Meaning :
|OBD-II Diagnostic Body (B) Trouble Code For Engine||Intake Valve Control Solenoid Circuit Low||O2 Sensor Heater Circuit Malfunction||Cold Start Injector 1 Malfunction||Glow Plug/Heater Circuit 'A' 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.
B0402 OBD-II Diagnostic Body (B) Trouble Code DescriptionB0402 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.
Main reason For B0402 CodeThe reason of B0402 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.
Parts or components should not be replaced with reference to only a B0402 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.