P3439 Engine Trouble Code
Meaning of P3439 engine trouble code is a kind of powertrain trouble code and when the check engine light comes P3439 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.
P3439 Fault Symptoms :
If one of these reasons for P3439 code is occuring now you should check P3439 repair processes.
Now don't ask yourself; What should you do with P3439 code ?
The solution is here :
P3439 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.
P3439 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Ignition System Or Misfire||O2 Sensor Heater Circuit Malfunction||Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)||Reverse Input Circuit|
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.
P3439 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP3439 engine trouble code is about Reverse Input Circuit.
Main reason For P3439 CodeThe reason of P3439 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.
P3439 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.