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U0484 Engine Trouble Code

Meaning of U0484 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.

U0484 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 U0484 code is occuring now you should check U0484 repair processes.
Now don't ask yourself; What should you do with U0484 code ?
The solution is here :

U0484 Possible Solution:

U0484 Engine

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

U0484 Code Meaning :

U 0 4 8 4
OBD-II Diagnostic Network (U) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low O2 Sensor Heater Circuit Malfunction Ignition/Distributor Engine Speed Input Circuit Malfunction Timing Reference High Resolution Signal A Too Many Pulses

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.

U0484 OBD-II Diagnostic Network (U) Trouble Code Description

U0484 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Main reason For U0484 Code

The reason of U0484 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

U0484 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.