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U1077 Engine Trouble Code

Meaning of U1077 engine trouble code is : 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 $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

U1077 Possible Solution:

U1077 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.

U1077 Code Meaning :

U 1 0 7 7
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering Ambient Air Temperature Sensor Circuit Low Cylinder 10 Contribution/balance Fault Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

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.

U1077 OBD-II Diagnostic Network (U) Trouble Code Description

U1077 engine trouble code is about Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical.

Reason For U1077 Code

The reason of U1077 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

Parts or components should not be replaced with reference to only a U1077 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.