C3978 Engine Trouble Code
Meaning of C3978 engine trouble code is a kind of chassis trouble code and C3978 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.
C3978 Fault Symptoms :
If one of these reasons for C3978 code is occuring now you should check C3978 repair processes.
Now don't ask yourself; What should you do with C3978 code ?
The solution is here :
C3978 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.
C3978 Code Meaning :
|OBD-II Diagnostic Chassis (C) Trouble Code For Engine||Ignition System Or Misfire||Injector Circuit Malfunction - Cylinders||Cylinder 10 Contribution/balance Fault||Clutch Position Sensor Circuit Malfunction|
Regarding the C3978 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.
C3978 OBD-II Diagnostic Chassis (C) Trouble Code DescriptionC3978 engine trouble code is about Clutch Position Sensor Circuit Malfunction.
Main reason For C3978 CodeThe reason of C3978 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.
Parts or components should not be replaced with reference to only a C3978 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.