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U0993 Engine Trouble Code

Meaning of U0993 engine trouble code is a kind of network trouble code and U0993 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,140 and you can't do it yourself unless you're an experienced mechanic.

U0993 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 U0993 code is occuring now you should check U0993 repair processes.
Now don't ask yourself; What should you do with U0993 code ?
The solution is here :

U0993 Possible Solution:

U0993 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.

U0993 Code Meaning :

U 0 9 9 3
OBD-II Diagnostic Network (U) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Injector Circuit Malfunction - Cylinders Crankshaft Position Sensor A Circuit Malfunction Exhaust Gas Recirculation Sensor B Circuit High

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

U0993 OBD-II Diagnostic Network (U) Trouble Code Description

U0993 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For U0993 Code

The reason of U0993 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

Parts or components should not be replaced with reference to only a U0993 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.