Logo

U3779 Engine Code Repair

Meaning of U3779 engine trouble code is a kind of network trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

U3779 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting

If one of these reasons for U3779 code is occuring now you should check U3779 repair processes.
Now don't ask yourself; What should you do with U3779 code ?
The solution is here :

U3779 Possible Solution:

U3779 Engine

Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly. If the problem is not enough fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel pressure regulator. The lean fuel mix error may be accompanied by rough idling, engine misfires, hesitation during acceleration and overall poor engine performance.

U3779 Code Meaning :

U
OBD-II Diagnostic Network (U) Trouble Code For Engine

3
Ignition System Or Misfire

7
Fuel Temperature Sensor B Circuit Range/Performance

7
Cylinder 4 Contribution/Balance Fault

9
Clutch Position Sensor Circuit Malfunction

Regarding the U3779 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.

U3779 OBD-II Diagnostic Network (U) Trouble Code Description

U3779 engine trouble code is about Clutch Position Sensor Circuit Malfunction.

Main reason For U3779 Code

The reason of U3779 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

Parts or components should not be replaced with reference to only a U3779 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.