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U0771 Engine Trouble Code

Meaning of U0771 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.

U0771 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 U0771 code is occuring now you should check U0771 repair processes.
Now don't ask yourself; What should you do with U0771 code ?
The solution is here :

U0771 Possible Solution:

U0771 Engine

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.

U0771 Code Meaning :

U 0 7 7 1
OBD-II Diagnostic Network (U) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Rail Pressure Sensor Circuit Malfunction Cylinder 10 Contribution/balance Fault Crankshaft Position Sensor A Circuit Low Input

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

U0771 OBD-II Diagnostic Network (U) Trouble Code Description

U0771 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For U0771 Code

The reason of U0771 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

Parts or components should not be replaced with reference to only a U0771 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.