C3989 Engine Trouble Code
Meaning of C3989 engine trouble code is a kind of chassis trouble code and when the check engine light comes C3989 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.
C3989 Fault Symptoms :
If one of these reasons for C3989 code is occuring now you should check C3989 repair processes.
Now don't ask yourself; What should you do with C3989 code ?
The solution is here :
C3989 Possible Solution:
Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.
C3989 Code Meaning :
|OBD-II Diagnostic Chassis (C) Trouble Code For Engine||Ignition System Or Misfire||Injector Circuit Malfunction - Cylinders||Ignition/Distributor Engine Speed Input Circuit Malfunction||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.
C3989 OBD-II Diagnostic Chassis (C) Trouble Code DescriptionC3989 engine trouble code is about Reverse Input Circuit.
Main reason For C3989 CodeThe reason of C3989 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.
C3989 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.